Hell, even the tournaments the sign ups are shrinking rapidly.
No they're not lol, you can look at UFGT alone and tell that there sign ups were better then ever.
Also, AE Street Fighter does not have much variety at top 8 at a good tournament. Watch the asians play it.
Marvel isn't dying because people aren't playing it, or watching it. It's the same West Coast players as before. It's dying because it's an old ass game that Capcom can't update.
Yet there are so many new players coming up like Cloud805, and Apologyman.
On Kane, he isn't even a Marvel God haha, he hasn't even made it top 8 for EVO. Like you said you don't know much about Marvel....
Kane goes into NCR where there are good Marvel Players, and he gets bodied.
Even Champ bodied him at NWM, shit was embarrassing.
#Update# Kane doesn't make top 8 again at UFGT... yeah hes great haha.