Nah, the Skaal are not stupid and they do not hunt just for trophies (sure they have animal heads mounted in their houses and great hall but said heads are still not going to waste, they are being used to make the great hall look nicer) but again the Skaal are not stupid, they had to have heard about the great war in fact Morwen is specifically stated to have at least one parent who was from the mainland and one who was a Skaal. She says it herself and even after that incident with the Thalmor the Skaal are perfectly fine with an Altmer Dovahkiin, A Bosmer Dovahkiin, A Dunmer Dovahkiin, or an Orsimer Dovahkiin walking into their village to buy Stahlrim or other stuff from them, and still perfectly fine with buying stuff from the Dovahkiin. They are also content with Neloth walking around them and we all know what Neloth is like, then again who could hate Neloth? Ulfric would hire the guy as an advisor because Neloth would just say one sarcastic remark to Ulfric and Ulfric would probably hire him so that point about Neloth might not be much of anything but the thought of Ulfric bringing Neloth tea is humorous.
The Skaal also seem content with the Dunmer at Raven Rock living nearby so there is another point to this discussion.
Actually now that think about it . . .
A mod to make Neloth the high king of Skyrim because Ulfric demands it.
Someone do it now.
and don't forget the tea
and do not forget the canis root
especially do not forget the canis root.