Of course, there are thousands of badly designed web pages around the world that make use of Flash, but that's not the fault of Flash, but of the people that use it.
I don't think that it is a question of personal dislike of Flash or not. In any case, animations are a powerful tool for teaching, for presentations, and artworks. And Flash - with its ability to both use vector-based graphics and bitmaps is not a too bad format, especially as it is supported by most of the browsers and therefore has a connecting function, such as PDF, for presenting graphics/data across different operating systems and computers. I experimented a lot with the RISC OS draw->flash convertor in former times for small cartoon animations (see [link] or [link]), but this is really extrem hard work and a lot of manual programming effort, if you want to move complex objects ... thus I still dream of a small Flash animation creator for RISC OS, for not beeing forced to use Mac or Windows computers in order to create animations beyond the Gif-Approach