^ that's crazy but it looks more like the guests fault than a bad-evac.
In that, the rafts are clogging up and the ride-op is there (presumably just to help de-clog it, as the pumps are still working then) but then the guests in the first raft seem to panic and try to climb out (cut in the video then), whereupon they stop the ride/pumps and then the guests all start jumping into the water as the rafts move back. One person is even contemplating jumping into the water as the raft drifts off screen.
If it were a proper evac they would have told the guests to stay put, then shut the ride - so looks to me like guests did not follow instructions (perhaps bad instructions)?
(not a good look in any event though!)