The whole aggressive wolves thing is the main immersion buster for me, in many games, but especially in this one, as someone who has studied wolves for many years. They're largely opportunists in the wild. Sure, they'll put up a fight when you put them in a corner, or they'll take advantage of an easy meal if you're alone in the woods with a broken leg and they've not eaten in days, but they're persistence predators like us. They don't fight anything near their size, their tactic is to intimidate, and chase until their prey is exhausted enough to be an easy kill. Most animals can hold their own against a single wolf if they stand their ground, often even a whole pack can be discouraged by making it clear you're not an easy kill.
I understand wolves serve an in game purpose, but its a role that I feel could be filled by any number of fictional creatures. Wolves can still pose a challenge from a gameplay perspective, in a more immersive way. They could stalk you when you're severely injured, and go for the kill then, or perhaps only stalk the physically weaker character classes . They could harass and kill your livestock, vandalize your animal pens, thin the local wildlife to the point its hard to hunt game, resulting in a need to go out to the woods and reduce their numbers, at which point the pack becomes a real threat .
Maybe when you kill off enough you can find a wolf pup in a den. and raise it to become a semi domestic livestock guardian or hunting companion, though I know domestic wolves has been suggested about a million times by now.
I know "Realism" is only a good thing to a point in a game, but it contributes to immersion and the immersiveness of the world is one of the most enjoyable and unique qualities of this game.
TLDR, There are more immersive and realistic ways to use wolves that don't detract from the setting but still provide interesting game mechanics without them being one dimensional omnipresent monstrous killers of the night (and day)
