I don't see how any of these are obstacles.
This is quite possible to accomplish; although it can be difficult to please everyone.
True, not everyone can be please. However, it says something when the character has not been able to find both critical and financial success in the last 30 years. I can't think of any major superhero who has not found both critical and financial success in the last 10 years.
I mean in the last 10+ years, we've already gone through two directors (Singer and Snyder) who have managed to create more skeptics/critics than advocates for their interpretation of Superman and couldn't present their respective versions without introducing something controversial.
Is it that hard to find a Director who is passionate for the character and can present a version that won't be deemed controversial and set fans apart over it?
Superman was not humiliated, and he most certainly had a character arc. Batman was humiliated, and his fans felt it and some disliked it, and the narrative supports that reading. He was as far gone from his ideal characterization as could be, and that was purposeful. He literally had to be inspired by Superman in order to stop the behavior that was portrayed as shameful, and to make a promise to himself and to Superman's memory to not fail him again. Was that the kind of arc and development you would have wanted for Superman? To be off the rails then inspired by Batman? Is it all about quantity and victories no matter what, instead of quality? It's absurd to suggest that somehow Peter who denied Christ three times and ultimately help to establish the Christian church after Christ's death was less humiliated and more important than Christ himself.
If Superman's arc was of one where he learned to trust in humanity, then I think Snyder/Terrio didn't do a good job in conveying that since Superman didn't feel like an actual character in the film at times. He came off as more of a plot point in his own film, where every other major character reacted off of his existence.
And I'm not saying that I wanted to see Superman go through a redemption arc like Batman did. But I firmly believe that Batman's arc was the main narrative point of the film and overshadowed whatever arc Superman had as a character. Imho, BvS was about portraying a version of Batman that had lost his way and only found purpose again through Superman's selfless act that led him to start and form the Justice League.
Unlike the comparisons to Christ and his disciples, Christ actually instructed his disciples to instill his teachings towards everyone in the world. He gave out that great commission. Superman did no such thing with Batman. Heck, Batman being inspired by Superman was unintentional on Superman's part.
Also, the fight between Superman and Batman was poorly staged imho. As soon as Superman got hit by the Kryptonite gas, he was completely helpless. Batman became "Bat-God" in that fight, where he pretty much dominated it as soon as kryptonite gas was introduced. I think I liked it better on how they portrayed their fight in "The Dark Knight Returns: Part 2" animated film where even though superman had entered the fight weakened by a nuclear explosion, he at least held his own before he ultimately lost.
The Justice League narrative is already clearly leaning hard on the idea that the team is insufficient and incomplete without Superman. When James Gordon asked if this was the team, Batman says they're "not enough." Superman is even leading them in death, which is the purpose behind Bruce sharing with the team how Superman draws out the best in people. We also know that Superman and Batman will discuss leadership, so it won't be a given that Batman is the leader, and it's possible the message will be that the Justice League doesn't need a leader or a king of some kind; they're all equals.
For a so called team that is "incomplete" without superman, Warner Bros seems to have no problem promoting the film with a incomplete roster. I can't recall of any ensemble film where a major character of the group was missing from all of the promotional material and marketing.
Batman seems to be Superman's only real advocate in the group, hence why he's the only one that we've heard talking about him to the group. Now I think it's possible that Barry might be a fan of Superman's as well, but beyond that, we have no reason to believe that anyone else in the group really gives a damn. And BvS was so vague on how Wonder Woman felt about Superman that their connection to each other feels nonexistent.
Also, let's keep in mind that we went from Snyder saying that Superman was the chairman of the Justice League and how there can be no league without him to now seeing a JL film that is not only promoted without him, but where Batman is the one giving the inspirational speeches to the group, motivating/encouraging Barry, and is the one that is leading and backing them up as well.
This is not a given. Yes, he won't be physically recruiting people, but one of the reasons those people might ultimately be amenable to Bruce's request is because Superman paved the way for superheroes and metahumans to have a role in the world. In fact, the first recruit, and in your eyes the most important one, was Batman himself. Who inspired and recruited him? Superman.
I won't deny that Superman didn't play a hand towards making it a easier path for superheroes to come out in the open..though once again, it was not intentional on his part. A lot of this so called hope and inspiration that we've seen from Superman seem to be all unintended results that came about after his death. Superman had no idea that other meta-humans existed and was never concerned with making a better world for them to step away from the darkness.
And again, Superman never really recruited Batman. The latter was only inspired because of Superman's death and Superman never meant to inspire Batman in the first place.
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