I have to leave about 8 in 10 M+ runs or so, because we can't clear past a certain boss, in a +12-13, all while I had done 16-17 keys on my alts, where I was leader.
People seem not to have the least concern about team composition, people's progress / legendaries and unless the leader knows that M+ score is irrelevant, the run is a shit-show.
I left a few runs where it was 7 minutes and we were still on the first boss, in a +12-13 MoS and this is almost the daily norm.
Is it just me or people really have no idea what they're doing?