I'm hoping that users will still be able to sideload the corresponding Android TV apps onto the Fire TV, or that a version where this is possible is released by

I'm hoping that users will still be able to sideload the corresponding Android TV apps onto the Fire TV, or that a version where this is possible is released by someone. Also, I think it's important to note that Amazon apparently develops this YouTube app for the Fire TV, and that YouTube has been a publicly accessible site as they mentioned. In contrast, Prime Video subscribers know what devices they can watch their content on, and sign up (or cancel) with that in mind. It seems like a stretch that Google is compelling Amazon to add a feature to their own app for their own service.