This is where our lazy lawmakers need to step in and protect consumers. Make it illegal to revoke these types of licenses over greedy, lazy, exploitative business mergers and acquisitions. If corporations want to fight that, then they shouldn't be able to "sell" digital movies or games anymore: Any time you go to "purchase" digital content, it must plainly tell you that you're renting said content for an undetermined amount of time.
Funny how so much recent talk has emerged yet again about how companies like Microsoft want to get rid of disc drives on their next Xbox... It's almost like companies don't actually want you to ever truly own anything. A rent economy is toxic and rotten, and it's infuriating that it's literally becoming our entire economy.