The biggest tool that Apple has against right-to-repair is billed as a security feature - That they register the components and disable features when they're replaced. There's legitimate use for this as a security feature, as it prevents many evil-maid attacks, where the attacker installs a non-genuine camera and slurps data that way.
And that's probably what Apple had figured out they can rely on. They pretend that their lock-in is a security measure, serialize all of the replaceable components, and refuse to give the tools to allow replacing the serial numbers.
As well as reserializing parts for free if it's clear you didn't steal them.
I think of Apple today in the same way as I thought about Microsoft back in the 90s: "Can not be trusted."