Jhin is significantly easier to shut down than Tristana due to an extreme lack of mobility and evasive moves (please don't say his passive, because that shit is fairly unreliable unless if the player is running a memespeed build) and he was NEVER capable of destroying an entire team through a matter of seconds and pure surprise, like Twitch is.
His only real issue is his W snare and that's it. But even then it's only designed to single out straggling enemies and its snare effect is too short-timed for consistently reliable quick escapes. It's not something that can take out entire fucking teams by any means. Essentially, he's a champion that specializes in team initiations and single targets.