But if you are a mortal put into a position like this, by something like Pharasma that didn't bother to consult any mortals about it, because She thought the mortals' objections couldn't hurt Her, and you have a chance to kill Pharasma and no particularly better options than that, you kill Pharasma.
This is a very short sentence in Baseline, metaphorically speaking. Not literally so, but if you read a lot of dath ilani fiction, it's very obviously where the plot of the story is heading.
Could it be subverted? Yes, obviously, but you can't rely on that; quite often, dath ilani stories don't subvert a very obvious trope, because the actual plot twist is somewhere else.