You followed other people doing the development at great expense. You're in no position to evangelize anything.
> Just pick a graphics library and you'll be fine if you want to move vector stuff around. If you miss the flash IDE, then it still exists and can export to HTML5 standards.
Hahahaha, yeah please use it. Please, I beg you. Use it and then come back and tell me it's just as good.
> I'm glad it showed us the way but it needed to be gone.
If it showed the way, people didn't quite see it, they went ahead with nonsense like SVG, which didn't work, so other people created Canvas, which still was massively slower than Flash. Just literally copying Flash would've been better.
I did use many graphics libraries before, thanks, they are fine.
You say things like "just export to HTML5 from Adobe Animate/Flash", but if you had actually used that, you would probably tell people to stay away from it, or at least acknowledge the caveats.
Web video was "fixed" in the dying years of Flash. I remember cursing on HMTL5 video, but it was suddenly got performing really well and switched YouTube to it and never looked back. Just pick a graphics library and you'll be fine if you want to move vector stuff around. If you miss the flash IDE, then it still exists and can export to HTML5 standards.
Being proprietary was just part of the problem. I'm glad it showed us the way but it needed to be gone.