Yeah, and the excuses are usually one of a few things: (1) Computers aren't for gaming, get a console, (2) Macs aren't for gaming, get a PC, (3) it's not really that bad, just castrate most of your graphics settings, or (4) Apple Doesn't Target You And That's Just How It Is.
Every one of those is crap. The first flies in the face of history, the second is the exact opposite of the stance that a true Mac advocate should take, the third is disposed of with performance numbers, and the fourth... the fourth is the real crown jewel. It's the one where the zealotry most amply reveals itself, with people twisting themselves into all sorts of bizarre arguments and senseless car analogies in an effort to justify Apple's indifference/hostility towards decent video for its sub-$2000 systems.
I must say, though, I'm glad to see an increasing number of people hollering about this. That's exactly what they should be doing. I get worried when they don't.