firstly, hand of sac is only truly useful to pally teamates, not to the pally himself, but, for arguments sake, to fully utilize Hand of sacrifice on yourself, you would have to know when you are about to be CC'ed by something that breaks on dmg and that near impossible.
Ret pallies have to be un-rootable since we have no instant gap closers like warriors, dks, rogues, and ferals. if we didnt have freedom, mages, hunters...basically anyone with a spammable slow can run circles around us.
And bubble doesnt do anything but prolong the inevitable, we dont have the mana to heal from 10% to full while bubble is active.
Im not asking for mongo dps, selfless healer flash of lights are not a game winner, you cannot keep an entire team alive with just that because most ppl know if there is a ret pally on the opposing team to CC him as well. which brings me to my main point, we are too susceptible to CC because we dont have away out except for trinkets.