I have a confession to make. Sometimes when waiting several minutes for a hardcore match I get busy doing something else and forget about it. By the time I remember I have already timed out. I feel bad about this, but I bet other people do it too. Hardcore just takes forever sometimes to find another victim... I mean opponent.
So my suggestion is to add a vibrate notification that plays whenever you enter combat. You could put a checkbox on the Match screen to turn it on and off. It would just vibrate the device. I know the music is a cue also, but I don't play with the sound on.
