I think the discussion is getting lost here. We recognize that the current system is a partially-free, but heavily-regulated structure. Now the question is, what were the weaknesses in the system? What were the points of failure?
Leftists are saying that the problem was that the system was too free. Libertarians are saying that the main problem lies with the corruption and inefficiency of regulation. Neither point is trivial, neither point can be dismissed as ideological rhetoric.
There are those libertarians who will always blame the government for every problem until we live under Rothbardian anarchy. You may think that position is idiotic, and you are welcome to do so. However, the leftists who blame every problem on "the unfettered free market" sound equally idiotic to my ears in a world with regulatory agencies with multi-billion dollar budgets and hundreds of thousands of pages of rules controlling trillions of dollars of capital every day.
So, don't dismiss all claims of misregulation even if some of the critics are unhinged. After all, if something is wrong there, we would expect it to have large effects. My old firm spent at least a seven-figure number each year to comply with regulatory rules, and it wasn't very large.