After playing a quick match game online, there’s a screen for 5 or 10 seconds where your xp meter ticks up and the fighter you were playing shows off. If you were playing in arcade or practice mode when the game found your last quick match partner, then after this ‘xp gain’ screen ends you will go to a loading screen to load right back into arcade or practice, with no opportunity to cancel matchmaking. Sometimes, after the delay of the xp-gain screen and the practice-mode loading screen right afterwards, you will find a match immediately before you have a chance to cancel. If you intended to stop after the last match this can be a bit frustrating, since you don’t want to rudely quit on the guy you just got matched with.
Having a button to cancel matchmaking on that post-match xp gain screen would solve this problem and let players quit matchmaking quickly without having to wait through a loading screen first.