My main complaint is that there isn’t a consistent experience between apps. Things are in different places, actions do different things in different apps, no gesture support, subpar players with horrible scrubbing, etc.
I think all apps should be held to a few basic UI/UX standards so going from one app to another isn’t a completely different experience.
The attached photo is just one example. Within the Apple TV app itself, long pressing an icon brings up this great menu allowing you to go straight to the show or the episode page. Long pressing in most other apps removes the show from your now playing list! All of these conflicting actions need to be rectified.
Apple can try to enforce all they want but they dont have enough leverage to do so. There are too many other great/inexpensive alternatives to the Apple TV. If I'm a developer and I'm designing the Disney+ app, for example, how am I incentivized to edit my app specifically for one platform?