Anything that allows a manufacturer to deliberately render a device that you paid for inoperable is not a compromise at all.

The alternative is “you can’t provide security updates because those updates might render the device useless”, which would put us back in the 90’s and would render every iPhone not made within the last 2 years a constant exercise in navigating a minefield of spyware sites looking to exploit some WebKit vulnerability.

Nonsense. Just provide your updates without deliberately bricking users' devices.