Mozilla as many other software companies plays with words and their meaning trying to develop newspeak instead of working on a browser, and most importantly wants to abolish meritocracy because it does not suit their needs of diversity, see: https://blog.mozilla.org/careers/words-matter-moving-beyond-...
So please remember: every time you want to say 'meritocracy', you say 'discrimination' instead. Therefore, any your statement about performance is not valid.