Because he was put there for people to test stuff for progression servers. Dum dum. Probably the same reason there is a thread for testing pop instances on test server.
Dude posts in every other thread...reads none of them. You should be more informed for the amount of time you spend on these forums sir.
I'm assuming he was removed in order to make the recent Live release, then left out in preparation for the impending release of PoP on Phinny. I have gotten the impression before that they don't have a way to make a change like that only affect Test, so they probably made the change, then removed it before making the next release to Live.
If they didn't remove him now he'd probably end up on phinny and, well, while it would be funny and all... you know. Probably for the best.