This article uses a classic diversion tactic - focus on a singular issue, which may have contributed, and attribute all of a complex issue to the single issue that fits the agenda.
No mention of how lending agencies, given incentives to close as many mortgages as possible, had no incentive to make sure those lenders could actually pay. The article gives no mention to how the Fed's lax monetary policy dropped interest rates and created a frenzy in housing that blocked a lot of people out unless they used non-traditional instruments.
The author doesn't say that the "anti-racist" policies are one factor (which may be true) but that these policies are the direct cause. As someone who purchased a home two years ago, I became personally aware of how low short-term interest rates combined with a housing frenzy that drove prices up over 20% a year can easily push a lot of people to get low-interest ARM mortgages instead of more stable 30yr mortgages.
I just think this article takes on a straw man because it suits an anti affirmative action agenda.