I think you are right that more end up divorcing. You are also correct that whether the M survives or not, someone who applies the DB principles faithfully will emerge a better person. Furthermore, for those of us who expect the re-marry there are valuable lessons to be found in this BB. Whatever the outcome in my sitch - I am almost 100% certain that will be D - I will continue to frequent this board for support and also to pay it forward. Therefore, I think you have to reframe your expectations.
Good luck,
RAI
P.S. Mr. Negative , Mozza actually has a nice list of success stories. Check out his threads.