Yea, he is only bad in the hands of noobs. People who think flash/exhaust are good spells on him, people that think crit dmg/hp runes are the way to go, people that think maxing mocking shout first is a good idea, the list just goes on.
Same goes with heroes like eve though. I play trynd and eve and I do great with them on a regular basis. They just take more technical knowledge and are less flexible than other heroes because you need to be really smart about your spells/runes/item build in order to succeed else you just fail. Like nothing is more fail than a tryndamere without clense because he will just run in and die without even ulting.