To me the most eye opening fact is that three of the four are believed to have died of blunt force trauma.
I mean, what could they have been doing, 11 knots or so max!? Probably more like 6 or 7!?
The other day the owner of the 100T motoryacht
I'm on went through a 65' wide channel with a blind double 90 degree "S" turn in it at eight knots without having bow or stern thrusters available, and I have to say it scared the crap out of me!