I mean, I like play anywhere and haven't noticed this. Just that it's underbaked because the selection is unreliable.
I can't help but feel like there's some overlap going on with the rest of their strategy, which IS confusing. For example the Ally plays your Xbox games...at least those that happened to be Play Anywhere. It's a part of the confusing clusterfuck, since the library of supported games is spotty yet the feature is being used as a crutch to market an "Xbox".