I dug up the Colin Moock article you linked to via archive.org and oh fuck I had forgotten the extent to which AS3 sucked. So much more verbose. So many things that had to be done in much more complex ways. So much time wasted dealing with that instead of actually making whatever interactive thing you were making.
What is the link? Because I could not find it. Html5+js promised a lot and some people just blocked out the bad memories. Blaming it on the iphone is simple but not accurate.
I think the last Flash job I had was around '08, dealing with a giant pile of AS3 pain in the form of a museum kiosk I inherited. I sure do not miss it.