No other online store is doing this. The only one that comes close afaik is Ubisoft (who couldve guessed), but only if you own zero games on that account.

They are required to delete certain data about you if its no longer necessary for their service, but not everything, especially since you have an ongoing contract with them. They either couldn't be bothered to only delete parts of data they consider useless already and instead chose to just wipe everything, or that's their way of malicious compliance.