And it does.
The hunter gives Trueshot Aura to the group, and the wolf the howl buff every 10s, so the idea is obviously to optimize the groups hunters are in.
I’m always in a group with only melees characters.
And as I said, the wolf benefits from his own buff too.
And when a cat would die in seconds on some bosses with an aura or aoe, the wolf will still be useful.