In the world of internet developers Flash is like marmite, people either love it or hate it. It can be very elegant and beautiful, it can also be slow ugly and does not conform well to the ideals of the semantic web.
So why the hype about the end of Flash, well simply this
When our cleint came to us and asked for an extremely simple site, our developers iterated through a couple of designs and quickly came up with a design we all thought was elegant and simple.
However when we built the site it looked anything but smooth. In fact this would have been a perfect flash site, but we needed iPhone and SEO compatibilty plus full use of the CMS, so that was out.
Even switching between pages was clunky, and when the scrollbar kicked in it jumped sideways on long pages.