This was my first thought. Apple is notoriously secretive, even internally. They likely see this as a way to prevent folks from reverse engineering through job titles what former employees were working on. (Agreed that it's super shitty and likely overkill, but I think this is a better explanation than outright trying to screw former employees.)
In this case, though, why not replace the job title with "Employee"?
In this case, though, why not replace the job title with "Employee"?