Agreed. I was essentially excommunicated from SRK for not running Third Strike at my tournaments. Keep in mind that this was in 07, right before Smash Bros. Brawl was released. Eventually, I said, "to heck with them" and did my own thing. I'm glad I did.
That being said, SRK is only one part of the whole FGC. However, they are the main lifeblood of Evolution, the biggest console tournament in the world. This presents three problems.
One is that their "elitism", while out of bounds, is somewhat justified as the tournament directors of EVO only announce news about the tournament through SRK either in their podcasts or by other means that ensures that they get the news first. Heck, if they could, there would have been a gag order placed on said news to ensure exclusivity for a set time.
Two is that you are not considered a real TO on SRK if you don't offer "approved" games. Of course this means that approved games are, SFIV AE, UMvC3, SFxT, or any other current Capcom game. I bailed on one tournament because I became so pissed off at only offering the same old games over and over again.
Finally is that if you are a fan of other franchises or companies, then you better bail on SRK. It gives them a "license to attack", especially if you are new to the site because their brand of idiocy is "the only way", kind of like the difference between Occupy and the Tea Party.