In all fairness to the DEV's, the Trapper Medal makes complete sense to me. I don't see why you're all calling for a patch
If you are a "skilled" trapper and are able to "lure" enemies onto the trap, you are duly rewarded for your efforts! I can't see how earning a medal just for using the spell is either fair or fits in with the general theme.
So, if you can't be bothered grafting early game and getting it up a couple of levels when it's dead easy to do, that's your own laziness or lack of cunning. Nothing wrong with the game!