Nice post, you are rewarded with 10 internetz. PvP is about dying, PvE is about sustaining. All three warzones in TOR are designed around killing ppl. You have to kill ball carrier, you have to kill players to be able to cap turrets, you have to kill players to be able to plant a bomb.
If healers are too strong, these mechanics will not work. Ppl are looking forward to GW2 and guess what ... NO DEDICATED HEALERS there. League of Legends game with ever growing popularity has tanks, damage dealers, bruisers and support but again no healers capable of countering dps output.