"Experience with no accidents" does mean nothing, except "lucky pilot". The opposite you have to question why. Incidents happen often, accidents happen less often, but from the number of entries you cannot distinguish "pilot is careless" from "pilot lacked luck". "No accident" usually means "no accident, yet" and not "safe", but "safe, until". If we could predict the next accident and would be able to justify wether an experience from a former accident is of help or not, we would approach god-like knowledge. But, we can only speculate.