It's not going to break the bank if they are not hired otherwise than based on their merits. Paying extra attention to a historically underrepresented class of people is generally considered not only meritorious, but necessary. I agree nobody should be hired without being the best for the job, but if an interviewer has limited time adding a few extra interviews for one group of people is the only practical solution. If it is hugely lopsided that is it's own problem, however the bump seems to be significant but not game changing.