Wow. The fact that you did this work, and Adobe didn’t do anything useful with it, indicates that you had some extremely lousy managers and executives above you in the org chart. I’m glad you left, for your sake!
Not at all, I worked with some amazing people there, but the writing was on the wall for Flash - Alchemy was moderately successful (we showed the unreal engine running in a browser via it ages ago https://www.youtube.com/watch?v=Ywh9KJ7a_Bk)
I guess you’re right… but there really isn’t anything that has replaced the ease of use and functionality of Flash. It is a definite loss for society, as large numbers of non-programmers are unable to use a tool to create rich interactive environments that can be used by large numbers of people. I suppose this was always going to happen given that we were entering a mobile-first world, but it’s sad!