He clearly does not know how to sail a sunfish.
Agree. Nothing wrong with the sail although it is rigged too high and on wrong side of mast. He clearly does not understand the rudder should be locked down and not floating up. Mast cleat is a “nice to have” and not mandatory.Wow, tough crowd! There are plenty of old style Sunfish and blown out sails out there. I think he provides some good information to those that own those many boats and don’t know the basics of setup or sailing.