Dart is also not popular despite of being announced for over 1 year. In short I don’t get what is really going on at Adobe HQ, maybe they’re trying to do some PR stuff or damage control after Unity ended relationship with them.
I’m not a fan of computer generated code and native will alway win for performance sake.
It’s already clear that lack of innovation is reason of Adobe’s failure so far. Instead of innovating and focusing on Flash platform core competency, they have alway been in the business of generating cross platform code which hurts performance badly and doesn’t have much success overall.
I heard that Adobe Edge html5 animation tool used jQuery for its animation engine some months ago, not sure if it’s still true but if it is then it’s a terrible idea because jQuery was never meant to be used for intensive animation. You can just expect the same thing with Flash Pro exporting tool.
Bottom line, as much as I love Flash its fate is under Adobe control and their strategy is a sinking ship.