There is an argument on another web site as to whether the lack of Flash is good or bad. Personally, I hate Flash as the vast majority of Flash applications seems to be advertisements of the most annoying sort. Plus, it is a massive resource pig.
The other side of the discussion likes Flash because they are either Flash developers (!) or because some of their favorite sites use Flash. They are willing to put up with the high demands because they have enough memory and CPU to handle it.
You can't please everyone!