The PC version suffers from people pulling out of ranked matches too. But there's an even larger problem that should be fixed first. You'll get into a ranked match with someone that has a sh*t graphic card and who's only running the game at about quarter speed (which literally feels like a 1-2 second delay) and by the character selection screen you already know you have no chance of winning, since even basic moves/combos will now be impossible or close to it.
The solution, embed a frames per second (fps) counter in the game, it doesn't have to be visible unless the user wants it to be, and in a ranked match, if someone isn't running the game at full speed or close to it, they will be auto forfeited.
Another minor bug, at the VS screen where you enter kombat codes, when you hold "Up" + either LP, BL, or LK, it doesn't count as if you hit the button 9 times, like in the arcade game.