Sophisticated Yet Humble
My own tendency is to assume that I'm the smartest guy in the room, or at least in the upper quartile. Instead of rescue, I prefer other boats leave me the fuck alone and not run me down trying to "help." What I saw in the video was a boat marginally under control themselves, they were not capable IMHO of helping the other boat with it's mainsail up.So for the audience here, what would you have done if you were the small sailboat with main up and several crew that the boat in the video passed ? Looking for a constructive response to what to do when you are caught unprepared (mainsail up) and need to ride out a major squall. e.g get sail down, point into the wind, how to keep the boat stable etc.
I would most likely work at getting the mainsail down and reach back & forth under jib to keep under control / make it to a safer area.
What could have been done to help the other boat, the one heeled over with the totally flogging mainsail? If you could approach from their windward side and pass a line, it might have helped them to hold their bow into the wind to get the mainsail down. However the most likely result, in the absence of fairly serious training, is a collision and a line in the prop.