I just had to run away for the first time, too. I was doing honor mode for the first time, man what a slog being careful. Anyway, I got the legendary "call mate" action, survived, but the cub didn't de-aggro!
I didn't know what to do. I ran for the exit, got 3 through it, and just as the 4th approached the exit, the cub de-aggroed, I presume from distance. I didn't hang around, counted my luck, and went through.
Maybe it's a "feature" of honor mode hardness?