Not sure why an additional remote key press makes that huge of a difference, but ok.
Just as an FYI, both Google (Chromecast) and Amazon (FireTV) have engaged in carriage disputes (even with each other in fact) in the past (and have/do remove/pull apps as a result).
You probably only paid attention to the issue of streamer-based carriage disputes once it affected you, which is normal, but these disputes have been going on for years now.
None of the players in this industry, content side or platform side, have clean hands - this is the nature of business.
Regardless, this in fact is one of the primary reasons I recommend a multi-platform streaming strategy: app carriage/compatibility/functionality/availability differences exist and can change at any time, so its best to insulate yourself from their impact by using at least 3 different streaming platforms, once of which is Android/Android-TV based (so you can sideload apps if necessary).