What possible reason could Apple have for wanting to delete these files?
I don't necessarily believe that's what they're doing, or that this is intentional or malicious.
Do you seriously think that could be part of Apple's strategy?
In any case, you are accusing Apple of using a deliberately deceptive and destructive business practice to retain an insignificant number of users with a massive downside if discovered.
It's both unprecedented and implausible.
Adobe doesn't forcibly move a user's files into the cloud and delete the originals.
The fact that you would do this makes sense of why you think Apple would
However, it seems like it would have no effect until a user tried to leave, and make an already unhappy customer even more displeased. How can this be a good business decision?