I think between all of the posts here we've got a pretty complete picture of what happened, but not necessarily in one place.
Looks to me like the first 45 seconds are broad reaching on port tack. There are a couple of times when moving whitecaps are visible and they seem to be approaching the boat from its aft port quarter. Judging from the tiller position, there is a bizarre amount of lee helm considering the wind speed and direction. In that much breeze (looks to me to be in the mid-upper teens at least) I'd expect moderate weather helm if anything. Then, at 45 seconds, it cuts to close reaching or beating on starboard tack. The tiller is still hard over to starboard, indicating massive weather helm. Eventually the tiller comes free and the weather helm pulls the boat to windward, and its own momentum carries it through into an auto-tack backing the jib and beginning to fill the main on port tack, with crew weight still mostly to starboard, leading to the knockdown. Crew weight on the boom and mast, and insufficient hull floatation finishes the job.
So, why is so much rudder angle and tiller force required? The fact that it's lee helm on port tack and weather helm on starboard implies that it's not simply a sail trim issue. Must be either improperly rigged mast or unbalanced foils. In any case, it seems to me that it's something that our illustrious skipper could have noticed and handled before coming up to the wind on starboard, making the worst combination of weather helm and imbalance.
As for the news story, it definitely must have been a slow news day for a sinking of a boat this size to make the cut. Next, given the apparent shortcomings of the skipper's experience, it seems there would be better options for someone to interview for boater safety tips. Interview the skipper if you must to get his perspective on what happened, but then let him go and get some lessons while you interview someone with a little more experience for the safety advice. Having said that, none of his advice was really too awful; certainly it doesn't hurt to tell people to have communications and life jackets. At the end of the day the casual viewers got some potentially helpful safety reinforcement, and we got some fun footage to dissect.