you can force the user to have the right player but what if people don't want to have the latest player? They don't get to see FK? That's not really fair, there are legitimate reasons why people wouldn't want the latest version of the player and no good reason to force people to have it.
as mark said there is a lot more code and CPU time involved in embedding an SWF than an image, plus we can restrict SWFs to 1k in size and they could still; be total CPU hogs.
I would still like to see them back, it was a fun way to express yourself but I think aside from the security implications flash kit is just too big for flash footers any more.
