Not really. JS simply outpaced Flash/AS in terms of technology. Better interpreters, better tooling, better governance (and that says a lot, considering how bad

Not really. JS simply outpaced Flash/AS in terms of technology. Better interpreters, better tooling, better governance (and that says a lot, considering how bad the Chrome-Safari controlled web is), etc. Yes, there were a few missing high-level functional requirements that were in the Flash ecosystem. But it turns out most of them are "easy" to implement/port/provide. (See Ruffle.)