Just depends on how you look at it.

If you think the entire commune revolves around the pack of wild dogs and their handler, you would indeed think that all affects would cease once said dogs were dead.

If instead you look at the dogs as one part of a wider commune meant to put some poor civilised SOB in the shoes of a fox enduring an English foxhunt, well, then the torment not being over just by killing the hounds makes perfect sense.

You're an Imperial, I get it, the Hunt probably raped you at some point. Dying isn't fun. Don't go in wilderness during the full moon and take consolation that the player behind the druid got to have fun at least.