Philip, I only call what I see. You said GBR turned back, which to me means, stop racing and sail back to pull bodies from the water (as we mere mortals do every weekend if necessary). I agree that he slowed and looked back, but that's a very different animal.
And just so you don't think I hate Ben for this, I agree that it would have been more dangerous for them to sail back to the crash scene. The power boats are there for that.
For the record, I'll always think that Burling should have retired after the SWE race with the bad umpire call. Yes, in the heat of the moment he panicked and pushed the button, but could have redeemed himself with greater sportsmanship afterwards.
Mike