Noone is saying a clicker is not an effective tool, and yes, I have shot one know all about them. You are adding a mechanical device to the bow. That device failed you on a shot, happens to be a shot at a deer. I shoot with a psychotrigger, just not a gadget I have to add to the bow.
Congrats on the deer you have shot that is awesome. And if the device had not failed, then you probably would be posting up photos. Many tradtional archers got away from compounds for all of the things that could go wrong with screws, pins, rest, etc. Best of success on your future hunts.
Jeff