These are the same investors who got scammed by SBF who didn't even have a basic spreadsheet that explained the finances.
I think that's one possible interpretation but another is that these funds choose to allocate a controlled portion of their capital toward high risk investments with the expectation that many will fail but some will pay off. It's far from clear that they are crazy or stupid.
If you don't have hindsight then passing on FTX probably implies passing on some successful opportunities too. So another opportunity cost and possibly a larger one.