Does anyone really believe this FGC crap? I don't. What we're really talking about is Capcom fighters specifically Marvel and SSF4. And realistically SSF4 since Marvel isn't spectator friendly to become an esport IMO. These are the most popular fighters in NA. They are the games that bring the most stream views for us to even fathom a discussion of this nature.
I don't really believe in the "Fighting Game Community" phrase because it assumes that everyone within actually cares about all the games. The fact is the FGC is a divided one. So I think the discussion is more accurately about whether the Capcom FGC should except Esports. Since it's the only community big enough to even hesitate.
Tekken has already achieved this status outside of NA. Because it is the fighting game of choice in South Korea/Europe. It has been at WCG, and has had it's own televised program in Tekken Crash. In NA T6 was apart of the MLG roster, but I guess it wasn't too popular to bring in the views. However, FGs hadn't really picked up at the time....
For SSF4 to be apart of Esports, it doesn't really matter what the NA communities think. If for example an MLG or NASL decides to add SSF4 on their roster....People will show up. These are leagues that can get plane tickets for the best Japanese/Korean/European players and fly them over to their tournaments. Do you really think people won't tune in to watch? Just recently SSF4 was showcased at Dreamhack, a vastly PC crowd gave it respect by expressing hype at the correct moments. The commentary was hype. And despite all the hate from chat monsters, I thought it went rather well. Only real issue I had with it, was how small the game itself looks compared to SC2, Quake, LoL...really as popular as SSF4 it's not the most mechanically impressive fighter out of the FGC. It is a 2d fighter after all, surrounding by 3d games running on high end graphics engines.
Esports is about two things....Professional players and Fanboyism(spectators/audience), So yes for major organizations like an NASL or MLG...only the Pros will get the spot light. However, I don't see how that kills the other tournament scenes. In fact it will probably fuel those regular tournaments, because if you can't participate at the pro level, you still have these other tournaments to make some money and maybe get recognition to get you at those sponsors/teams.
That said I believe there many obstacles, Esports games aren't a 2-4 year deal. These games can get up to 10 years old. You need that kind of consistency to be an Esport. I don't see that happening to be honest. FPS games can pull it off because they're aren't niche. Even though competitive gaming is a niche, FPS companies can make money by releasing a COD every year. For the competitive side very little changes in an FPS. Capcom can't do that shit. In fact if Capcom dares to do that like it's been doing with SSF4 updates, it will shoot itself in the foot. FG aren't games the casual consumer buys seasonally. That's why it's a niche market to begin with.