Imagine where the Xbox would be for FPS games had there not been a booming PC industry to bring the best FPS-engine designer minds together in an x86 environment for what, 10+ years? It's all in the programming (more precisely, years of programming experience over a specific architecture). Anyone who can level a broad assumption blaming the hardware alone is simply ignorant.
BTW, chap blushes a lot, don't you think? Maybe its a mental tich.