> despite an insignificant fraction of customers using such a feature?

Isn't that the exact same argument against Lockdown mode? The point isn't that the number of users is small it's that it can significantly help that small set of users, something that Apple clearly does care about.

Lockdown mode costs ~nothing for devices that don't have it enabled. GP is pointing out that the straightforward way to implement this feature would not have that same property.

Lockdown mode doesn’t require everyone else to lose large amounts of usable space on their own devices in order for you to have plausible deniability.

now I want to know what dirty laundry are their upper management hiding on their devices...