Watchmeblock

When 5.4 first came out Alter Time mage spell was working PERFECTLY , then after a month from the launch , some1 disabled it and now it says "This spell is not available to you" WHY IS IT BUGGED? its the most important MOP mage spell in the game , this is the TOP priority , mage mastery doesnt work , now alter time doesnt work? whats next ? no talents for us? im waiting for an explaination why is this disabled (its already been a month or 2)