Yesterday, playing with the Chaos banner, I was switched to the opposite team, then back onto theirs, then again the opposite team, and lastly back onto theirs. This repeated for several maps.
Also, it seems as though you get balanced more whenever you're higher up on the scoreboard, so doing well is not rewarded anymore, but punishable by being teamswitched to the losing team. The only hope you have is that you can kill as many enemy players as possible to help your team before you go down. Sadly, some rounds are bad and you end up not getting but 1-2 kills, and your team ends up losing to the 15 enemies still alive.
Overall verdict of Reinhardt: Hate it. Too much switching.