Stu , Higgs nailed it
Most rules people talk about are for boats that meet in open water, like starboard over port and leeward over windward, and then there are rules for starting, rules for rounding marks, and rules for transitional circumstances like tacking too close and changing course. In the video the rounding was complete and had starboard steadied up immediately it would be treated as a port/starboard, but in a transitional situation port doesn't know how he can avoid starboard because starboard is still turning. The bottom line is that you don't have the right to turn into another boat even if you will have right of way, unless, when you stopped your turn and gained the right of way, you are far enough away from the give-way boat, to allow him to get and stay clear (in a seamanship manner).I really hoped that Higgs had the protest results to help explain that, but such is life.Joe S