I personally find Rengar, Jax, Darius, Udyr, Singed, Malphite, and Rumble much more difficult to deal with than Tryn. It takes a bit more than a little CC to shut them down if they get fed.
If you CC lock Tryn, he's forced to back off since he's normally pretty vulnerable once his ult's on CD. Rengar, Jax, Darius, Udyr, Rumble and the likes can be tough to focus sometimes due to how tanky they can get... while still dealing tons of damage. Equalizer just flat out makes teamfighting impossible if Rumble gets fed. It's really hard to avoid due to how small the map is.