The main thing here is, its all distributed and not tied to a centralized service in possession of one corporation.
Really? Did you ever try to reset and/or re-activate an iDevice which is still somehow tied to a suspended AppleID?
I bet this won't work!
iDevice msg: This iDevice is linked to AppleID: e**c @ icloud.com please enter blah blah password to activate -> error account is does not exist, this would probably be the resulting scenario. And the problem probably starts with FindMyiPhone.
Suspended AppleIDs does not have access to Apple Internet Services, and Apple Internet Services are tied to their *cough - your* Devices and *cough - your* Apps, more or less depending of their implementation. Believe it or not, it's simple like that, they can snap you off whenever they want, just like Thanos. In addition to this comes unknown errors and crashes because *cough - your* App will try to access resources which does not exist anymore.
Ohh this reminds me of South Park, you agreed, too.
"You agree that Apple may, in its sole discretion and without prior notice, terminate your access to the Site and/or block your future access to the Site if we determine that you have violated these Terms of Use or other agreements or guidelines which may be associated with your use of the Site."
In simpler words, you own nothing. Your iDevices requires Apples "Internet services", their Servers and Services for Device activations, and they can terminate your access anytime.