Why would they do that?The same reason they have neglected to even mention the "I herd u liek Mudkips" meme on their Pokemon article. They're douches.
In short, Wikipedia has a bomber's worth of regulations. Rules like NOR (No Original Research), 3RR (Three-Revert Rule), NPOV (Neutral Point of View), N (Notability), V (Verifiability), CRUFT (Fancruft), CIVIL (Civility), AGF (Assume Good Faith), WAR (Edit War) and so on.
All these policies make editing the encyclopedia very frustrating, which is why I don't edit it that often nowadays.