In this particular case, it's unclear exactly what oversight could have prevented the mistakes. We just won't know for a while. But... yeah, it seems very much not unreasonable that the 2018 Dodd-Frank rollback may be part of the problem.
I agree that we don't know if the weakened regulations caused this - it's possible the regulators already had the tools in their belt they needed to prevent this and were asleep at the wheel. We will find out eventually.
The fact that the 2018 bill was a bad bill with bad effects doesn't make it "corrupt". Congress debated it, congress passed it, the president signed it. All that happens in public; it's the opposite of "corrupt".
I've started to wonder if we have any other kind, frankly.
But it would have taken the govt getting into the whole risk & diversification & bond laddering & liquidity issues at a very granular level. You know, the whole shindig about huge risks to the banking sector and responses? That, all over again.
I'll say from my perspective they were under-regulated. We can't have dumb banks throwing all their deposits into Fixed-Income with similar maturities putting their deposits at extreme risk of devaluation and interest rate risk with no hedging or laddering, and no good response to liquidity demands.
I question the professionalism of the bank's investment crew given we knew about the interest rate rise several years ago. NIRP/ZIRP could never continue indefinitely and they knew it, and we knew it.
We knew it!