The EULA says it is right so that is that? Lol
The iPhone gets bricked after a check during iOS updates. It doesn't brick right away.
Car analogy would be when you take in your Ford car to the Ford dealership for an oil change and they see you used non-ford authorized tires and Ford decides to brick your ignition.
A better analogy would be when you take your ford car to the ford dealership for an oil change and they see you have tires not authorized by ford with no tread that will explode causing you to wreck if you keep driving on them, and they say you can't leave with those tires on them.
Which does happen and by law they can't let you drive away.