While this was written from the empaths prospective, let me add a word or two about other defenders/controller sets. Basically, know who is healing and how. An empath or rad has a PBAoE heal. The OP's advise is good for those circumstances. That is very different from the Stormie with a single target. That is different again from the Kinetics with a AoE centered on a target. Each requires a different style.
From a Kinetics pov, I realize that when the blaster is in danger, the first impulse is to run. But I can't help you unless you stay close to the mob. And with the strongest AoE heal in the game, I will keep you alive but you have to stay close to a bad guy or I can't do anything. However, a Stormie may not care too much where anyone is so as he can target that person. So, know your healer (and healer know your team) and adjust your tactics accordingly.
