The 37s guys have done some wonderful work. But to me they are pretty much the embodiment of what I think of when I remember Paul Buchheit's great quote:
"Limited Life Experience + Overgeneralization = Advice"
I think approaching your work from the standpoint of "Learn
from success, not failure" is a sure path to succumbing to
confirmation bias and becoming a one-trick pony.
Maybe, people able to learn from mistakes are able to recover them before their business fails...