[wpm]

Yes, because if they didn't, the fact that macOS doesn't lock you down in a sandbox means that is more like the entire boot chain would've been jailbroken. The boot chain shared for the most part with iOS devices, where Apple 100% does not want "jailbreaks" because it means App Stores that they don't get to take 15-30% from.

The happy path on the Mac was provided so the talent capable of booting Linux on it could take the happy path that hides all of the stuff Apple would rather not have a bunch of reverse engineers sniffing around.