Not salty, although I love salty. What I mean it's I've been there done that. It's not the first time that a Capcom fighting game was deemed a flop when it wasn't, it happened with SFV two years ago. MvCI sales wouldn't never catch on in Japan because Japan love them handhelds and most of all Pokemon. Obviously MvC would sell way less than that one there.
My point is that Marvel vs. Capcom Infinite being a great game with some insanely fun gameplay and strong fanbase right from the get go - the popularity of the thread here is just one example of that - will prove that this game will have some strong legs. Marvel Studios has Thor: Ragnarok coming, Black Panther and Infinity War next year. Anyone doubting that both Marvel and Capcom won't capitalize heavy on that is crazy
The way I see it, Capcom took the whole thing about making this game a "service" with them adding new characters and skins constantly is something that will catch on because they have some of the most popular characters in the planet right now. Hardcore fanbase, strong esports scene and the popularity of these characters will keep the sales of this game doing better than most here would like to admit. But hey. Maybe I'm just an optimist.