that tp system seems to be more like rogue energy systeme in wow , your energy resplenish over the time so the CD are made with the TP regen ( spam too much have a good burst but then you do little damages ) where as 1.0 was more like the warrior rage system , both are good , i don't see why it sacrifice strategy but i understand that you are worried , i think we currently have no enough information to ask for changes of this system .
But the 3 sec CD feels to be a bad idea , it would slow the game too much .