Except that this still relates to an older version of the technology.. in the Dune series, Leto bred the Duncan Idaho ghola over many generations because although some persons were invisible from prescience, he could still see their footprints.. but the footprints of the ghola faded from sight. Apple has been working towards making it impossible to extract the keys, and I'm sure that in crypto war 3.1 they will work further towards this, since it appears that the Secure Enclave may still have some weaknesses (that a firmware update doesn't wipe the keys)

Whether the regulatory mechanism allows them to create something proof against the regulators, now thats going to be an interesting battle. They are still a US company after all.