In addition to legal barriers there are also technical ones. You have to run a scrub job to delete all data by prior tenants on a change of tenants. That job neccessarily has to overwrite the entire SSD and thus adds both wear to the device as well as takes time (around 30-60 minutes according to [0]). The SSD is soldered onto the PCB so it would be hard to replace it with something virtualized (or smaller that'd take less time to overwrite).

[0]: https://news.ycombinator.com/item?id=25562532

So you won't be able to rent out one device to dozens of tenants per day who each use it for ten minutes or so while ensuring inter-tenant isolation.

Last, those Apple rules might as well be non-enforceable legally, but Apple might still retaliate by e.g. removing apps from their store that were uploaded by tenants of those EU companies.

Theoretically you don't need scrub entire disk but just drop FDE encryption key in < 1s