Please read the study or at least the comments here before jumping to the conclusion. Yes, they used constructed resumes, so the qualifications were exactly the same. And no, literally no one is suggesting this proves racial discrimination. It's applying the four fifths rule, a fast, coarse evaluation that is used to identify if maybe theres worth investigating more for a conclusive evidence of racial discrimination.

The authors are saying it's worth doing more research, because in a controlled data set the results appear unbalanced.