It does not protect the consumer from abuse claims. But rather instances of hardware failure not being covered because of an installed app. Or the nv flash going bad because of root.
In easier terms let's use a car as an example. If your manufacture says you have to change your oil at said interval they cannot deny your claim to a bad wheel bearing or your compressor going out etc.
Another example is with computers. When I used to support them for one of the big manufacturers we would not support them if they installed any other os. But once they reinstalled them we would.
So while rooting and unlocked bootloaders CAN damage things you can change the burden of proof and you still have rights.
So yes I am from America, and I modify almost everything. Hardly use warranties. But am by no means stupid. So please keep your assumptions out of this discussion
Sent from my C6916 using xda app-developers app