Excuse me? The Audit made to look how much discrimination NASA is doing that states that there had been no progress in lessening (hiring) discrimination in a decade (!) doesn't show discrimination?
I already have shown proof of systemic discrimination in the hiring process against non whites. Of course a blanked rule is sensible to help mitigate this.
What is the worst that can happen? A company that didn't discriminate in the first place won't be affected such a rule besides some paperwork maybe. But since most do (see the study above) it sure would help.