Okay, I'm a little wrong about the alignment system. In any case, the Kagha root requires a rework, to make it look like an alternate neutral path. Perhaps it will be the completion of the ritual, the expulsion of the tieflings, but a peace treaty with the goblins. The pacifist path. Something like that.
This quest has untapped potential, now Kagha root is bad.
She doesn't have to be absolutely evil.
For an evil hero, she loses to Minthara, and I want me to want to support her when I play as an neutral elf and I don't see a reason and opportunity.
It might make sense to make a conflict between tieflings and druids inevitable so that helping one side is not an obvious "good" option. More motivation to help druids is needed, and a little more Kagha content. I think Larian will be able to come up with something with this problem