Why was the PvE -> PvP transfer changed?

Here is the FAQ we put together when this was first changed:
http://forums.worldofwarcraft.com/thread.html?topicId=9679894520&sid=1&pageNo=1


Q. Why are you now allowing character transfers from PvE realms to PvP realms?

A. Because World of Warcraft has matured significantly since the inception of Paid Character Transfers, we don’t feel that PvE-to-PvP transfers will have the negative impact on the game that we initially wanted to avoid when we started the service in 2006. This change will provide more mobility and freedom for players to experience the game with friends or play in the type of environment they’re looking for.