It does go beyond simply making a pledge, though. Applicants are required to list all the ways they've furthered the cause of this very specific issue, regardless of whether the job itself would entail or even offer opportunities to exercise such experience or not.

Like requiring an applicant for a fullstack python/js position to list in detail all of their Erlang experience, projects, talks and initiatives, and gatekeeping on that.

Now Erlang itself is great, and understanding the principles that guide it will almost certainly help you in your career (even if you never write a single line professionally). But to make this a central focus of acceptance for the job is just plain silly.