Yes, but that's simply how statistics work. If you require one group of people to score 90 on some test in order to be hired, and another group to score 80, then among successful applicants the second group will have lower average scores than the first. There's no getting around that.
The argument should be over whether or not Google's hiring practices lower the bar for particular groups of people. If they do, then the above conclusion about the average talent of various groups is inescapable.