You've got to factor in the recycling as well. Dormammu was playable in MvC3 as well so his moveset and animations were already ready. I think they reused the same model as well. They did remake some models like Captain America, but others were pretty obviously just imported, like Chris Redfield. Aside from the totally MCU Marvel roster, you have weird choices on the Capcom side as well. Like only having 2 new Capcom reps, or the return of Bionic Command reboot-designed Spencer. Even on the new characters there is recycling. The majority of Gamora's animations are reused from different MvC3 and Tatsunoko vs Capcom characters.
I would love to know the details on MvC:I, and why it's budget was presumably so low. If it was hampered due to Marvel, if Capcom saw it as a way to make a quick buck, whatever. I'm glad Capcom has shifted the guy who was in charge of Monster Hunter over to fighting games now, hopefully he can bring them up to the standards of the rest of their current games. An MCU focused MvC could be the biggest game the series has ever seen.
I'd be fine w/ some deep-cut characters (Bionic Commando, Sir Arthur, Gamora) being locked in the beginning and there as fan-service, kind of like how MVC2 initially required satisfying requirements to unlock characters (and Smash always has). It gives incentive to work towards goals in games that otherwise wouldn't have a ton of content or to go through things like story modes.
I forgot Dormamu was in MVC3, that makes me less annoyed about it, but still. And, the original fighters had some obscure characters (Blackheart, for example) who wouldn't be recognized by a casual audience.
Mostly I guess I just want MVC: I to be better than it is.