Since a dev has already noted our concerns, I'm just adding this on as another example.
Earlier today, I was hunting in PO and had a failed assassin strike on a yellow level Mamba. The Mamba and company proceed to follow me and I aggro a Capone Gunner and Hellion Gunner during the chase (both yellow level). The snakes give up, but the two gunners don't. I end up running halway up the eastern coast of PO and back before someone takes pity on me and finishes them off.
This has happened a few other times with Wolf Spiders.