Witcher 2 felt like you had a purpose, hunting down Letho.
Witcher 3 is all over the fucking place by comparison. I never cared much about the Wild Hunt storyline.
wild hunt wasnt really your goal, you were chasing your waifu(even if just for few mins), then your daughter that was lost and suddenly appeared.
Such tasks are often weird as on one hand they give you opening to explore open world, on other its hard to understand urgency - just like seeking your father that ran away from vault.
Due to this blurred urgency I liked kcd approach - quests expire without giving you actual timer. Open too many at the same time - you will start failing them. Extra points for not being able to load some save as going back few in game hours is not enough to finish.
Anyway -> wildhunt was clearly meh part and could be just removed. Main villain was perma frost after all. Or maybe it would work if for some reason it wasnt so one sided - dark sided. Probably the only entity in whole game that got so one sided evil agenda?