Well... it's not as if "feminine monogender race for whom sex and reproduction are independent" is that unheard of a concept in fantasy. I can easily name two races who fit that bill - the Blind Warrior-Women of Altaria, from RIFTS, and the Asari of Mass Effect, know there was a third such race from some sci-fi game in the 90s - Star Commander, I think it was called, and I'm sure there's others.
Plus... even if the backdrop is stars & planets rather than dungeons & ruins, this is still D&D. Have you seen some of the stuff that passes for biology in this game? Hard science isn't exactly the building block of the game here.
But... I am open to discussing fixing them. My basic intention with the race is to throw together the Ctarl-Ctarl of Outlaw Star, the Khaijit of Elder Scrolls (where, depending on moon-phase, kittens produced by any female khaijit can grow up to be house-cats, dire tigers, or cat-people), and the Altarian Warrior-Women and see if I can come up with something suitably pulpy/80s.
Re:Millstone85
Yeah, even the 2e version was better, in my opinion - Warning! Barbie Doll style nudity!
http://dedpihto.narod.ru/games/Monsters1/tabaxi.gif