About that you are wrong, because the strong players dont choose the weak ones !
It's the matchmaking system to blame, wether the strong players nor the weak players.
I explained in an other thread why that will become worser and worser ... hp gap, item gap, the strong ones will become stronger and stronger etc etc etc.
So the ones who complain about the non-given reward after the opponent quit first turn, do NOT complain about the quitting (!), they complain about not getting the reward for the win !