Shouldn't diversity be a distant second to telling a good story?
Writing is a paid profession. It's perfectly valid to want any profession to be open to all applicants regardless of who they are.
And part of telling good stories, plural, is having those stories come from a variety of viewpoints. Diversity enriches storytelling, allowing a wider range of voices to be expressed authentically.
Besides, Star Trek is a franchise built around the celebration of diversity in combination, so it's only fair to expect that we should put our money where our mouth is.