First of all, autopsies are performed whenever the cause of death can't immediately be determined, or there might be other issues -- maybe his front door was open or smething, who knows?
"Disabled" doesn't automatically mean paralysed. Emphesyma is a disability. So is muscular dystrophy.
Don't see why it means that much to you. Pretty morbid if you ask me.
Just another episode of "prove it". Besides, I don't see anything morbid in social commentary on a satire thread.