Flash plugin isn't developed by kernel developers.
So why?
Other than that, it's 3/5 funny.
It's more of a poke at Linux users in general than the kernel development team. The lack of flash and video codec support are one of the main reasons the predicted "Linux on the Desktop" revolution never happened. At the same time, I don't understand why Adobe won't back Linux as it's in their best interest to weaken Microsoft.