I agree on the disconnect, but I don't think it's all relevant to this situation. Almost every party involved should have been well aware of this fairly basic concept.
It's a bit like suggesting zoomers know what a filesystem is because they grew up with computers; seems like it should be the case on the surface but you'll quickly realise they've never dealt with the underlying realities of the system, they just use the interface.
I am suggesting that business owners with substantial cash holdings should be well aware of fractional reserve banking, or at least the notion that money in the bank is not guaranteed.
Do you seriously think any of these companies weren't aware of the $250k insurance limit?
I'm genuinely curious what you mean, as your example sounds like a straw man, but I'm hoping there's something I'm missing.
Don’t you mean “or even the fact that money was ever backed by gold”? If you knew about gold backing at all, surely you’d know we left the gold standard last century.