The "funny" thing is that if you watch the replay and look at the linesman (or whatever they call that person) who made the call, his head literally NEVER looks down to see where the ball actually hit. He sees the ball coming kind of towards him and he moves his foot back and leans away from the ball (and that part of it is fine) without ever looking down at all (which is not fine)
That guy had no more of an idea if that ball was in or out than the blind guy sitting in the last row of the arena had.
That play encapsulates perfectly my problem with replay in all sports, not just volleyball. If you aren't going to overturn a call as obviously wrong as that on replay then what, exactly, is the point? That was exactly the sort of incorrect call that replay is supposed to fix, and yet far too often we see the replay official just sticking with the call on the field, even if it was by an official who wasn't actually looking at the play when it occurred, rather than making the obvious overturn.