This happens a lot to me for some reason. I've heard that others don't see it as often and for that I am just unlucky I guess.
It would be nice if in the loading screens and character select, where three players aren't in the party that the "Duo" would have the option to re-queue. We can use voice to chat with the other player and decide if they are going to bail or not...rather than get into the game and have them bail anyway. Which in my experience, most do bail.
Just let us re-queue and move on. Stuff happens and I don't think that's a bad solution to people disconnecting/crashing on loading.