I always felt that if Valve was to do a 'female' cast of TF2. The shouldn't be genderswap character of the same thing.
They should have unique abilities that would add even MORE variety to the game.
Seeing this Medic is a perfect example. Instead of a long range needle gun, FemMed has a short range radioactive blaster that does progressive damage on contact - only until healed by another medic or medkit.
Did you submit to Valve?