So this is the Justice League International before the Justice League I take it. It's as if these other heroes existed before Superman, as this version of Superman is presumably in his second or third year in his career? I try not to be bothered by the fact. I wonder how he'll look next to these other heroes. It's pivotal to me that Superman has a large role.
While I wasn't a big fan of BvS, I liked the idea of Bruce Wayne being a bit older than Clark. I never felt like they had to be the same age, but I was only bothered by the fact that Batman had been active for two whole decades before Superman's arrival. SO they made Superman the second hero. I talk to some people, and many people think Batman was the 'first' superhero because of this--if you consider Batman a 'superhero'. Some people will make excuses for BvS and say that Batman is not a 'superhero' but a vigilante. Whatever. Though Wonder Woman existed before both of them did...and the JSA as well in the DCEU.
In the new DCU, we have the JLI--and they have existed for who knows how long? Kind of awkward when Superman was supposed to be the first. He's the ultimate superhero, but he is still the first. He should have a significant role. In ZSJL, unlike the theatrical version, Cyborg had most of the central focus in the movie. To me, it's pivotal that Superman is the first alien and superhero on Earth and makes a huge impact on the world above all heroes, Batman included--or Superman should at least be the first one to expose his powers to the public...and inspire other heroes. If not, then I hope Batman--if he already had been fighting crime before this Superman--can at least come out of the shadows if you will. And Wonder Woman...well, she leave Themyscira and you know. The JSA would have already had to have existed. I think it would be better if the JSA were from another Earth though. The JSA could have already existed before Superman, but Superman should at least be the first alien immigrant. I think introducing Superman to a world that has already been exposed to aliens and metahumans will be potentially a drop back.
I kind of felt this way about Justice League War. I didn't like the way Superman was portrayed. When they introduced Superman in the middle of the movie with Batman and Hal Jordan's Green Lantern, Superman just looked kind of redundant next to GL...and Shazam. Another 'super' hero, and his name is just 'Superman'. Just a middle character. But he was the first. Too many of them could fly, and they were all over-powered.
Smallville introduced Supergirl to the world before Clark even became Superman. They showed the 'S' already and introduced almost every other hero they could before Superman made his debut. Clark being the first superhero didn't seem to matter, because he wasn't. What was the point in the finale?
Whatever. Just feel like these points should be noted. Hope Gunn knows what he's doing.