I still would like to know what the idea was with premium features... Emscripten and WebGL were already a thing, and Unity went and wrote their own plugin and canned the Flash export that (I imagine?) spooked Adobe in the first place. It screams of desperation.

The funny thing is, I don't even remember the premium features nonsense from back then. I only learned about it when looking up information on how Domain Memory works. That's how irrelevant Flash Player already was, and THEN they decided to start asking for more money beyond just how much Creative Suite cost.