I only have one incident which was documented, where it was pretty certain it was a big pack attacking a lone man. It occurred in Alaska and the man did not have a working firearm. He had a knife, but it wasn’t enough.
Here is the article:
https://www.ammoland.com/2022/05/man-killed-by-wolves-in-1939-undocumented-documented-case/
I have read Valerious Geist on wolf attacks. I understand his reasoning, but it does not seem to occur the way he thinks it would.
One of the items Valerious mentions is the timidity of wolves when attacking new prey. They do not want to be hurt, so they have clumsy initial attacks, especially on humans. This makes them vulnerable to a defense with weapons, especially with firearms.
True indeed. Their relative confidence is a function of habituation. Hence, that timidity can evaporate. As you mention, effective intimidation can keep that from happening. Therefore, the government's prohibition from "harassing" them is a very bad idea.