So by your own account it was okay because they were slotted in to replace characters who didn't make sense for the story given the nature of the MCU. Hmmm....kinda like using Zemo instead of Red Skull for the Civil War!
Uh....what? No, by my own account, Widow & Hawkeye were slotted into founding MCU Avenger roles because Edgar Wright ****ed up "Ant-Man" to the point that Hank Pym and Janet Van Dyne --- the *original* founding Avengers --- were left out of their iconic and canonical namesake team and, you know, marginalized in what's left of the Ant-Man film. Hank & Janet were *supposed* to be in the original Avengers film because,
Avengers. When Wright screwed that up, Marvel had to settle on the next likely canonical entrants to the roster, viz. Clint & Tasha.
Your analogy is nowhere near the mark.
Why would Marvel go to through the plot somersaults of bringing back a character who is:
1. Presumably dead after being zapped into space by the Cube.
2. Likely having to be recast given Hugo Weaving's disinterest in returning.
3. Not particularly popular in his movie incarnation anyway.
When it'd be much easier to slot a character with a similar motivation and a shared emnity with Captain America into the Red Skull's role in the story, someone who can be a fresh villain for a new actor to play.
While I can understand Marvel being compelled to bring back Red Skull for the sake of symmetry in the trilogy and wouldn't object if they end up going that direction, I don't feel its necessary, and I'd rather see Baron Zemo here.
1. There is nothing at all to suggest that Red Skull's teleportation to Wherever killed him. Especially in light of the character's iconic comic-book career as Cap's archnemesis through multiple generations.
2. If I'm right, Skully HAS already been recast. No search needed.
3. Says you.
Bringing Skull back makes sense not only for the obvious homage to the comics, where Skull remains THE primary nemesis of Cap, but also makes sense within the MCU. Arnim Zola's motivations, and his unbridled evil genius, would become all the more apparent if it was revealed that the reason he kept HYDRA alive all these years was because he was still searching for (and receiving) contact with Schmidt somewhere in the cosmos, and arranging for his return from deep space.
All of you guys rallying around Team Zemo, good luck. I'm not gonna ragequit if he gets the call; it's all good. But I think I'm on the side of the general audience and the vast majority of Marvel comic fans when I root for Team Skully.
And all you guys with visions of Thunderbolts dancing in your heads, y'all *do* realize this movie is already confirmed to feature Cap, Iron Man, Black Panther, Falcon, Winter Soldier, Crossbones, and probably Hawkeye and Black Widow at the least, not to mention non-supers like Sharon Carter and possibly Fury and Hill; and yet you want to introduce not only one new villain, Zemo, into the mix, but also any combination of Beetle, Moonstone, Songbird, Atlas, Fixer, Venom, Penance, Green Goblin, Ghost and god knows who else (most of whom belong to other studios anyway)....???