I would say that this is the most negative interpretation possible that you have there. It can also be interpreted in the way that the maintainer is breaking th

I would say that this is the most negative interpretation possible that you have there. It can also be interpreted in the way that the maintainer is breaking this code of merit if the maintainer is evaluating the contribution on anything other then merit. It certainly does not sound to me like this Code of Merit is specifically for supporting sexism like you imply here. It is just specifically against the Idea that Merit or Meritocracy is "dead" which is a common view of those pushing for the usual Code of Conduct stuff.