Really ticked about Plex & AppleTV/iOS/etc. lately! You're a *business*! Act like it!
So, this is gonna be a bit of a rant but it DOES have a point.
Plex - especially after pushing Plex Pass so hard - must begin to take it's customers more seriously. That means YES you DO have to acknowledge issues with your product running on new OSes such as when Apple updates to tvOS11 or iOS11 or even High Sierra. Yes, you SHOULD take responsibility for bugs and provide a bug tracker WITH estimated times of repair of bugs. ...and YES you SHOULD be getting pre-release versions of Apple Software and testing your product on them, then release fixes WHEN Apple releases final GM's of said products. This is business. Do it!
...here's a big one: NO, you should NOT become iTunes + iPhoto all-in-one. Fix what you have out in the wild, THEN add features.
I am an iOS/tvOS developer myself. I'VE had access to all the software for MONTHS! I got lucky. My software required very few fixes - but Plex is in the middle of a huge debacle with iOS and tvOS right now. There are a lot of things that are broken and many need fixes. STOP branching out and doing photos, live tv, etc if you can't make the original product work!