[kelnos]

Sure, but I'd much rather be bound to a domain registrar, where I'm paying them for a small, well-defined, self-contained service, where I have recourse if they do someone shady to me.

For Google/Apple/etc., I'm either not paying them at all (in which case they have very little incentive to help me off someone goes wrong), or I am, but for a basket of services. The identity portion of those services is probably not what that company is focusing on providing, and any weirdness with any other service in that basket could cause me to lose my access to the identity bits, often without recourse.