* Roddenberry objected to the script having Eleen killing her baby. The story's reverence on life in general is part of Trek's more underlying themes so I can imagine why Roddenberry objected to the original script.
* DC did write Eleen as a strong female figure to fight against her society that was very narrow of its treatment of women (only as mothers/homemakers), which helped culminate in the original ending of her baby being sacrificed (which is remarkably strong and seems almost harsh (?) but I do wonder what else of the episode was changed at Roddenberry's behest. I'd be a treat to ever see the original draft before it all got changed. Would the story be more or less poignant? IMHO the finished product works but the original vision of the creator, Fontana, definitely wanted something a bit different. And, of course, the network may not have wanted the original ending for reasons similar or otherwise to Roddenberry's... again, for 1967, it was pretty big.