this isn’t a thing. nobody who’s serious about m+ cares about this.
yeah, this is it honestly. most of the time when people complain that somebody left even though “nothing went wrong” it just indicates they don’t know what went wrong.
“oh the healer left after the first pack and nobody even died!” yeah, if it was a normal pull and the healer had to blow all cds because nobody kicked or moved out of avoidable damage, that’s a problem even if nobody died. they’re saving themselves 30+ minutes of tense, un-fun play.