Doing the good deed to users? or basic UX mistake from Apple?… “Don’t give me what I didn’t ask” some might say. And they are right.
Others where probably happy to have a small gift from Apple. It’s debatable.

Apple went too far on trying to please the clients, for me it’s fine, I’ll just delete the files if I don’t want them.
But in a time when digital surveillance is a hot topic, Apple should be carefull on how they enter on client’s personal cloud services.

If in doubt, always stick to proven good practices. And from a UX point of view, it would be a better decision not to do it in the first place, or do it in a different way like sending an email with a link to download the files. That way the user as the final choice.