It's so clear MvC3 was rushed and that's a real shame.
I remember Marvel and Capcom both talking up a real story mode for this game, but then Marvel would only lend out Tieri, who sucks, and Tieri had NO IDEA how to write for any of the video game characters. For a lot of characters, he'd just peruse wikipedia, put a couple of proper nouns in there, and call it a day.
I don't think there's a better indication that MvC3 was rushed than Galactus, though. It's clear there was supposed to be a third part to that fight. When you punch Galactus enough, he says "Now I will crush you like the bug that you are."
Then he just fucking dies.
They obviously had to cut out the last part but were unwilling or unable to change the sound sample so he basically says "OKAY NOW FOR THE NEXT PART" and then the fight ends. Not that it's that big a deal because who really cares about the final boss fight, but it's this big ass flag for how rushed the game was.