As SVB grew beyond 50 billion in total assets it would have had to meet, "enhanced requirements including stress tests, stricter capital requirements and risk management practices". Those requirements were put into place to prevent larger "systemically important" banks from making high risk bets. But, because they repealed that portion of the law, raising the cap to banks over 250 Billion so SVB was not subject to those regulations as it grew beyond it's 50B asset value. SVB was around 210 billion at the time of collapse.
Obviously there is no way to go back in time to prove the counter factual that SVB wouldn't have collapsed had they been subject to stronger regulation but I feel pretty comfortable saying that stricter capital requirements and risk management wouldn't have hurt.
Once again - SVB would have very, very likely met those Dodd-Frank requirements.
SVB's collapse was about rising interest rates, long term t-bonds, and MOSTLY a bank run.
Stress tests are about recessions, not bank runs.
But let's say Fed regulators came knocking.
The Fed said "there is no inflation" and "inflation is transitory." Those were the auspices it was operating under. Rate hikes were not on the horizon. Yellen was saying there is no recession, so was the Fed.
The bank's funds were sitting in what is globally considered the most secure financial instrument - U.S. treasuries.
There is actually a good chance SVB would have been fine it weren't for the bank run, not to mention their client portfolio.
If the repeals in Dodd-Frank were about bank runs and banks vetting their depositor's sources of income you'd have a case.