Yea, I don’t remember doing all that much actual sailing in Skellige. Just used the nav points. Once I realized all the question marks in the ocean were 100% skippable and you wouldn’t miss anything crucial, I was fine. I imagine that people who can’t play a game like that without exploring every map icon would have found Skellige tedious and boring, though.
For me, Skellige is actually more memorable for being the zone I found least interesting story-wise. I wasn’t emotionally invested in the succession one way or another, I find Yenn a bit tiring as a character (she feels like somebodies hot, snarky mom on a CW show, don’t @ me), and that is definitely the part of the game where you are most saddled with her in the storyline. Both literally and figuratively. I did enjoy the intro to the zone with the Ice Giant, but the whole Lycanthrope thing and the druids and the succession were all among the weaker storylines to me.
The fact I can actually remember all the storylines years later still says something. I couldn’t even give you anything beyond the vaguest idea what Pillars of Eternity was even about, for example. Let alone the name of even a single one of its zones. I guess bad Witcher 3 is still pretty excellent.