What's wrong with having more applications from less qualified candidates? The point of the interview process is to filter them out. The goal of having inclusive language is to encourage qualified candidates, who otherwise wouldn't have, to apply.
The trade-off of less aggressive language resulting in both more applicants but also a higher percentage of under-qualified applicants will eventually reach some inflection point where it becomes unproductive, as you're almost certain to already have a well-qualified fit in the batch of interviewees.
What you miss here is that men are often overconfident and women are under-confident. It has nothing to do with qualification. It has everything to do with confidence.
And yes, women are often less confident because tech is an industry often marketed for men.