I was hoping that Field Medic would be an Auto power, much like the auto powers for some of the Epic pools. I suppose that would make it another slot for a proc, but would that be so bad? As the last power in the pool it isn't trivial to take, and it really does read like it is supposed to compliment the other powers that would be taken along the way.
Currently, so many builds have alternate means of Health/End recovery that the heals in the Medicine pool feels like little more than an alternate to green insps. I'm a fan of the final pool power choices offering a little more oomph.