These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: The Darkglass Mountain Trilogy
Complete Monster: Kanubai. Responsible for a lot of really bad things happening, including infanticide.
Moral Event Horizon: Ravenna, when she betrays Maximillian and then has him killed. She's just lucky that Ishbel took mercy on her for being pregnant with his child and could resurrect him.
The fact that he's no longer an arrogant ass (due to his Character Development in previous books) might contribute to it as well - the fact is that he now recognises how flawed he is and how mistaken many of his actions were, and he's turned out better for it.
Squick: Pretty much the usual coming from a Sara Douglass book.