Statcounter is a toy analytics report based on hobbyist blogs.
If you look at
Net Applications, it ranks:
IE6: 25%
IE7: 21%
IE8: 15%
I think the idea tho, is that IE users are not quick to upgrade in the way that users who choose a browser are, such as Firefox/Safari users. And a huge % of the Win PC IE market share is corporate users who are told what version to use. MS is finding that it's hard to introduce standards compliant modes in IE 8 because it has sold IT shops on custom sites tied to IE6 conventions.
As for your devotion to Flash, it has a few problems. First, it was managed by Macromedia for years. Adobe didn't write it, nor has it worked very hard to make it work on anything apart from Windows. It does not work "well" on Windows, it just works "less worse" than on Macs and Linux. It also does not work at all on mobile devices. For that, Adobe sells a "Flash Lite" that does much less.
The reason Flash is used for video is because HTML development, as the article notes, stopped around 2000. Flash has benefited from there being no better alternative. With HTML 5 supporting rich media, rich app features, and everything else, there is no longer any need for FireFox, Safari, IE, and Opera to build one rendering engine for the web, and then bundle another closed rendering engine for Flash content. That's completely pointless anyway.
And regarding market share, WMP had overwhelming market share before iPod/iTunes took over. Netscape had market share before IE. Yahoo had market share before Google. Symbian had overwhelming market share before RIM and the iPhone hit.
Web developers are going to be falling all over themselves to learn and apply HTML 5. They are not going to also maintain parallel expertise in Flash to carry forward an identical set of features, just out of fondness or nostalgia for Adobe. Particularly with 50% or more of all mobile traffic going to affluent users with a phone that ignores Flash.