As for the two 'shocking' videos in tge O.P., some people need to get a life. Those were mishaps, dealt with as good as can be expected from people who are perhaps steering for the first time. The kids didnt hit a bridge, they hit the overgrown remains of an old swing or lift bridge. These are a nuisance at the best of times, creating an obstruction for no reason. They didnt gun the engine in firward when they hit the bridge, but reversed and corrected the situation. Not pretty, but certainly not a ' shocking' incident. And the second video shows someone cocking up going through a bridge. Btw, when you quickly need to bring the bow over, you apply a burst of forward, with the tiller over, as he did. Again, not pretty, but no great problem.
Some people just enjoy watching other peoples misfortune, and love nothing more than disapproving tutting. Go get a life.