Part of why Adobe is struggling with Flash is its sense of entitlement.
The company believes not just that Flash is a good idea, but that you *must* adopt Flash. As-is. Without question. No matter how much it slows down your device, how it hurts battery life, how it affects the stability of whatever browser you're using (I know it's not nightmarish, but it's far from perfect). Oh, if you're making an Android phone, could you please make Flash a core part of any marketing you do, no matter how much it actually matters? Thanks!
And if you dare to omit Flash like Apple (and now Microsoft, partly), then you're an evil commie dictator who hates freedom and life itself. Just look at how John Dowdell and others from Adobe react to Apple, or how Android phone and tablet makers are practically forced to parrot Adobe's line of how you're not getting the "full web" unless you use their third-party plugin. Never mind that HTML5 lets me AirPlay a video to my TV where you can't do that with a Flash video on any other platform.
This wouldn't be a problem except that Adobe hasn't really addressed many of the underlying problems, and I'm not sure if it entirely can. Hardware acceleration is good, but when a Galaxy S II or an Optimus Pad (both dual-core devices) can still choke on a moderately sized piece of Flash, that's a problem. It's also still very common to hear of Flash crashing things or of security holes specific to it... when Apple, Google, and Mozilla design sandboxing code specifically because of the problems your plugin creates, that should tell you that you're doing something wrong.