Again, the regulators failed. Again, there were opportunities to reinstate the regulations.
You're still seeing this through a partisan lens. The point is that leadership failed us at every turn. That could be by removing regulations or failing to put them in place if necessary. The simple fact is there were some measures in place to supposedly prevent this and the regulators failed to properly do their job. Would it have mattered what regulations were in place if the regulators are too incompetent to follow them? There is a single point of failure here and the lack of redundancy and checks and balances should be disturbing to anyone not looking for a partisan axe to grind.
The people responsible for ensuring the integrity of our banking system are not doing so.