OK, satire for an isolated point regarding 4e, I can accept that, but a satirical thread that's 14 pages long, that's another head-wrapping conundrum...?
I never played 4e, but have no problem with anyone who does or the game itself. Really the developers might not think of every nuance from every previous edition, but for a GM to ad-hoc include a mule seems like nothing at all, and I don't get why its even worth a conversation for such an insignificant piece of equipment or animal. Its a slight curiosity and little more.
It seems Pathfinder umbrellas mules as a "pack animal" without offering stats for one, but hardly worth mentioning, let alone being satirical about it.
I get the gist of the thread, just not the 14 pages of enthusiasm over it...