Most of them, yes. Because they were "programmed" by people not good in programming or UX design. But flash enabled even newbs to build awesome stuff - and it had powertools for the pros. The workflow I had back then, I never found again in any other tool. So it has nothing to do with not wanting to learn something new - there still isn't something alike. And that is quite sad, despite the flaws of the flash player and adobe.

(oh. and flash was for free for students and also easy to pirate)