First of all the feature wasn't available in the initial Big Sur release and it only got available during the Betas for the first minor patch. Second of all, some Apple developer stated on Twitter that (during M1 unveil) he's finally able to show all the boot policy work they worked on the past year(s) to allow users to boot foreign OSes and without opening up holes for attackers.
Basically it boils down to: they could have just used iBoot without changing it at all to keep it as a brick like the iPhone/iPad/Watch, but instead they invested plenty of resources to allow it.
With all that work done to allow it, I'm sure there'll be plenty of people inside of Apple who'd protest if someone changes their mind and decides all this has to go away.
Basically it boils down to: they could have just used iBoot without changing it at all to keep it as a brick like the iPhone/iPad/Watch, but instead they invested plenty of resources to allow it.
With all that work done to allow it, I'm sure there'll be plenty of people inside of Apple who'd protest if someone changes their mind and decides all this has to go away.