The initial idea was great, okay? Hero Mode in deathmatches. I thought it was pretty sweet- until they let it become available outside of Hero Mode. That's when all the 2010 conspiracy theories of "they'll release a character with 400 hp one day!" came true.
But, this doesn't mean you should have less fun if you decide to stay in Wolfteam. You can look at Hero Characters in a bad way, or a good way. The bad way, I won't put emphasis on, just go out on the forums and look around; you'll find it.
The good way, however, is much more rare to find. It's just to have fun. Look at Hero Characters as a harder opponent, a new obstacle in your daily Wolfteam workout. Let it test your skill and ultimately, become better. Just stick to it, and wait for the next huge thing, and keep repeating until you decide to quit.