As a non hunter player I use to think that too. Then I played more and realized hunters are fine the way they are. They are a hit and run assasin class and when played properly can seem OP but if you see them coming with their blade dancer they are easily beaten. I've even dodged a few using my blink ability until their super runs out. Every class has their strengths and weaknesses. Play to your class strengths and you'll seem OP to others as well.