you folks claimed AOSP wasn’t going anywhere

It’s not though? AOSP is open source, it can’t really go anywhere.

Google are not required to keep updating AOSP, especially not at an arbitrarily decided upon timeframe by some other developers who piggyback off AOSP.

I dislike Google as a company and have basically moved away from every single Google service apart from Google photos and Waze, but that doesn’t mean I’m going to just demand they do what I want them to.

These devs are upset because their business is almost entirely dependant on Google giving them their work, and fair enough - but they should have known this would happen one day. When you make a business reliant on someone else’s business doing work for you for free, you should have a backup plan.