I think back button suddenly closing the app is more hostile. When you do it accidentally, the recovery steps are painful (app switch, find app, focus to it etc). I totally understand why Netflix would prevent it from happening. I think iPhone solved it better than Android with the "super back" link or the app hopping gesture. Android could improve the back button with a long-press requirement in order to navigate away from the app too. In this current situation, Netflix is completely in the right to disable the behavior.
Sorry, I totally disagree that is is "completely in the right", I use 3 other video apps, they all give exit prompts instead, here is an example:
Netflix could have done what Prime video does
Prime Video: "Do you want to exit the app? (Yes/No)", then done
Netflix: scroll all the way down the menu options: Home, Play something, New & Popular, TV Shows, Movies, My List, Get Help, Exit Netflix (click), 8 clicks in total before you can exit.
So it takes orders of magnitude more clicks, and more time out of my life, every time I try to exit the Netflix app. Considering that exiting an app is something I do all the time, it is not great
I think the existence of exit prompts is sole admission of how painful this experience is for the users. The prompt itself can be a hindrance for the user too. I still think that it's an Android UX problem, not Netflix.
