I can't agree with those who want to get all the companions in one replay (with flowers,cotton candy and kittens in the end). Minthara's choice is very adequate since getting closer to the Absolute (and her underwear optionally) is a good option of finding a cure. Tieflings and druids are useless for you, so if you are not playing a hero it is a 100% adequate choice.
BUT! Even after all fixes you will not get that amount of quests and dialogues from Minthara comparing to how much you lose. It's like losing 70% for getting 30% at the VERY LEAST.
So the is either a way of making more Minthara related content (quests, locations, even companions like DLC), which we might get in the future, or a more possible way of making her recruitable with others (which would be kinda dissapointing choice for me personally, but still viable).