Yes, his undeniable skill at video gaming and the sheer force of his savantism reached out to his Xbox's hard drive and altered checksums in such a way that his account would be flagged as having cheated. You think Microsoft's anti-cheat enforcement is entirely qualitative? They were able to ban one of my consoles for having modified firmware even though I never took it on Live, downloaded DLC, &c. You think they can't spot someone artificially inflating their Gamerscore?
Take a second, breathe deeply, be intellectually honest with yourself, and apply Occam's Razor. What's more likely: that Microsoft is engaging in an unfair and oppressive campaign against gaming savants (never mind that that's not how autism actually works) at the highest levels of their company, or that an 11 year old cheated at a video game? I find it actually more offensive that everyone's first reaction to this story is that the kid is being oppressed for having autism, which must clearly make him an unstoppable video game ninja, and that we should all be so lucky as to be autistic too.