Digital "ownership" is just as temporary, and when "buying" digital products online (or, technically, even physical copies of media), you're only paying for a license that can be revoked at any point. Just because they don't hunt you down doesn't mean you properly own something.

There's a reason SaaS took off, just like media streaming took off. Convenience is higher on the list of priorities than ownership. If they take my stuff away, I'll just switch to media that isn't barred from public use.