Launchers should not be spamable.
Launchers, especially with a game that has a superhero flavor, are haymakers; they knock you way up in the air or slam you down hard, or into the hands of a teammate. You combo into them from your strongest normal attack. They should hit hard and be the slowest move and have a significant recovery. They should feel like haymakers. Missed launchers should be an easy punish. Haymakers should be a risky move if you’re not comboing into it.
Maybe I just haven’t had enough time with it and my timing is off, but here is an example of what seems wrong. At PAX I played a capcom rep, he had obviously spent some time with the game and his strategy seemed to be spam the hell out of the launcher. Most times I tried to punish a blocked launcher, he would hit me with a second launcher before my counter attack landed. That just felt so wrong.
It seems like a lot of moves, special moves, and even supers have very little recovery built into them with MvC3, and maybe this is to make offensive play less risky and therefore make the game faster paced, and that’s fine but the launcher is one aspect that should not get that treatment IMO.