So, Iceland is less Norse pureblood than the rest of Scandinavia, and secondly, the "Iceland has had the benefit of developing free from the guilt of having displaced native inhabitants" statement of the article is also total rubbish in the sense that there were plenty of forcibly displaced inhabitants, it is just that they were native to elsewhere.
[1] https://www.irishtimes.com/news/why-people-in-iceland-look-j...