A simple example of why this idea has very little validity: the housing bubble was a global phenomenon.
As a second example: most of the questionable sub-prime lending during the housing bubble was done by private institutions not under the CRA regulation.
Some good reading on the subject: http://www.ritholtz.com/blog/2011/11/examining-the-big-lie-h...
Now if you want to talk about repealing Glass-Steagall or the lack of regulation of the derivatives market via the Commodity Futures Modernization Act (both mentioned in the article you link to), then I'm all ears.