They named a Seattle hockey team after a fictional Norwegian sea monster. It has nothing to do with hockey and nothing to do with Seattle. It's stupid.
It's like naming a Toronto basketball team "The Raptors."
In Seattle, you had so many things to draw from as a maritime city, you also had a long hockey history in the area to draw from.
If you were, for some idiotic reason dead set on naming your club after a fictional monster, you also had one of those that was specific to the Pacific Northwest with Sasquatches, but instead, they opted for something from Norwegian maritime folklore which is frankly bizarre.