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 Obernewtyn Chronicles
Alternative Character Interpretation: Atthis is a Magnificent Bastard who has cunningly manipulated people and events, playing off of the fears and hopes of entire species to warp any respective mythologies within a one hundred mile radius of Elspeth, in order to make her their Chosen One, and hence make sure that the believers of said mythologies will sacrifice both their own lives and that of their followers for her sake.
Foe Yay: Elspeth and Ariel. Especially in The Keeping Place.
Many Sadorians want to breed out the inherent brutality in their blood, and abandon their savage language. But it eventually becomes pretty clear that the Sadorians are Arabic speakers and probably the descendents of Arabs or North Africans. Whoops.
It's said in-book that Mericanda (which is supposed to be America) shares a land-based border with Gadfia. So, in terms of geography... no... that doesn't really make a lot of sense. That said, there is a lot of bizarre geography described throughout the series.
It is stated in Book 1 that the Great White changed the shape of the land...
That much is a bit hard to believe, given that it'd require relocating one piece of the land across a rather large percentage of the globe's circumference. That degree of changing shape would require warping reality—and in turn mean the Great White couldn't have been caused by nukes.
Rushton being emotionally abusive to Elspeth throughout The Stone Key is apparently proof that he really does love her.