Didn't watch the vid, internet too slow. I'm sure this has been covered here before. I am very hesitant of ditching, I do work in some remote areas with quite a bit of water, maybe 50%. I would always go for the timber, the water here is usually below 10C. Combine that with an inverted aircraft and maybe some injuries and cockpit egress difficultly because of impact damage and it narrows your chances considerably.