I was there. We were within VHF range to hear the Mayday off one of the boats. 2 closest boats stood by (and not that it would have helped, but interesting to hear one had a defib on board). From what I understand, both sailors were experienced, not paying beginners. Awful news to hear during a race, but damn good reminder re safety. I have never done a race where I was clipped on so often.
It was windy, but not more than low 40s, so not too bad. But seas got very large and at times, very confused, so could have been easy to get thrown into a Chinese or the like. We had the helm washed of