Presumably the target audience is not unfamiliar with the gender disparity in tech. If they are unfamiliar there exists data about the industry in general that would be better suited to making a point to them. So, this is aimed at some subset of the industry, but it seems a bit nebulous because...
Is it a call to action? "We Can Do Better"? OK, so who are the "we"? What are the actions to take towards doing better? (I mean, more specific the obvious end goal of gender equality in our industry.)
With or without specific calls to actions, why is this broken down on a per-employer basis? Should deviations from industry average be celebrated and booed? Is it an attempt to put pressure on the employers, if so to what end? Or is this just a novel way of reiterating a statistic that the target audience already knows?