Well, not no one but the class failed to sustain itself.
I think you point to a critical factor in class success... the class sociology or esprit de corp ... Stuart Walker pointed to this and noted the essential contributions of class leaders AND the culture that makes people feel they belong to a group that is up and about something in the world. Some of the Hobie class's are able to do this extremely well. The 16's in particular have a core group that go racing and go to national events. The A class seems to be generating a similar culture. You sort of worry about the F18's because they can and have fractured along sectarian lines... which undercuts the esprit de core and camraderie that you need to sustain a group.
Its kind of funny... People go head over heels about A cats but they just seem to like the F18's ... what they care about is the competition.
Now... if they dropped a hundred pounds... would the F18 generate passion????