The only thing to which that stat bears any relevance is your narrative—a foundational pillar of which is that stat itself, that has no other relevance.
Although they may have historically been periodic, crashes have been extra-ordinary events, not ordinary events. Avoiding a crash is no more important than taking advantage of periods between crashes—and at this point, with longer inter-crash duration, it is in fact less important.
And if crashes are a thing of the past—for which thesis there is a plausible argument—avoiding them becomes not important at all; it becomes at best totally irrelevant, and at worst counter-productive.
I am personally biased away from that thesis, but not by much, because I understand its merit. IMO this is one dimension of profitably balancing a portfolio, that nobody yet really takes into account.