The only good content in Flash was games and animations (like Homestar Runner). If you were using Flash as a Web/application design tool, you weren't making good content. You were making a pain in my ass.
The looping radar views use flash [1] [2]. The composite regional radar loops don't though [3]. That is unfortunate because the former has more information and detail. There's no reason why it can't be reimplemented with canvas or SVG to manage the overlays.
And I know there are still issues. Given today's speed, issues are more about security and accessibility.
My point was just that the artists using flash to create good content were not amateur animators.
Edit: My point was wrong as it was based on a misunderstanding of the use of the word 'amateur' by the person I was replying to.