I don’t think I actually believe it. The water is falling maybe 30 feet, and it’s already spread out pretty thoroughly by the action of the bucket. It can’t be falling any faster than a raindrop, because we know a raindrop is at terminal velocity. and while I’ve never actually had it done to me, I’ve seen people splashed with big buckets of water from well above; they get wet, but not crushed.
Nope, I call bullshit.
Fun video though.