There's "refusing service", "banning customers", and then there's "turning off a device you've already sold to a customer after he's taken it home". There are not many goods/products/businesses who get away with doing that. Even Steve's "You're holding it wrong!" wasn't followed up with "so I'm gonna remote brick it on you"...

(Interestingly, Amazon have in the past remote-deleted Kindle books on people's devices - but for very much better reasons that "you were a bit rude in your review", and they _still_ copped a roasting for it...)