This specific allegation seems like "reverse discrimination" sure. But as of right now it's just a one sided allegation presented in a lawsuit. I'll be interested in seeing what the evidence bears out.

I have intimate knowledge of the workings of diversity programs at some of the FAANG and big 4 consultancy companies and none of them involve purging white male applicants. Do postmortems occur when the diversity goals aren't met? Well sure, it IS a targeted diversity program after all. Sourcing initiatives have no bearing on whether a candidate meets a manager's hiring bar or not.