When someone claims to have changed on sexual subjects I just assume they're a liar.

The man's kink is horses and sexually abusing people. That hasn't changed and won't change any time in the future. Anyone that thinks he's stopped wanting to say the things he said to Poppy is an idiot. The only reason he hasn't been caught doing it since is because he was socially shamed and terrorised into not doing it again. Doesn't mean he changed, just means enough consequences were created to prevent it again.