Sounds like base covering to me. Actually, the TOS for most software and services are written something like this. Take the beloved Valve's Steam subscriber agreement:
"In the case of a one-time purchase of a product license (e.g., purchase of a single game) from Valve, Valve may choose to terminate or cancel your Subscription in its entirety or may terminate or cancel only a portion of the Subscription (e.g., access to the software via Steam) and Valve may, but is not obligated to, provide access (for a limited period of time) to the download of a stand-alone version of the software and content associated with such one-time purchase."
In other words, if for whatever reason (doesn't matter what) Valve terminates your account, you might, solely at Valve's discretion, get to access your account to download your games one last time. If they don't feel like it, and if you don't happen to have a game downloaded at the time, then you lose what you paid for.
Would Valve do it? Probably not; but they retain the right to do so.
These agreements are all about liability, and the companies that write them choose whether or not to exercise their rights.