Matchmaking stats

In matchmaking when the game is over but before the roster of who will be in the next games comes up people quit. How without turning off their box I don’t know. At this point it throws me back to the search screen. When I look at waypoint for the stats they are not there. Every time this happens the stats never come in Ever. Lost a lot of games to this. What is up I stay it searches after the gane but no update. Are we supposed to keep track of our own?