In short? Yes, because the striker melee is a pitiful skill. However titans have the best grenades and IMO one of the best jumps outside of blink for PvP. Use a hand cannon for midair accuracy, glide/boost coming around corners, and take "better control while jumping" skill and tap it repeatedly for multiple boosts in mid air. Learn to run away, turn the corner, jump and do a 180, and shoulder charge the guy chasing you. It takes awhile to get good at titan in crucible because their skills are not based on traditional FPS concepts, whereas hunter supers/warlock melees are just better versions of mechanics that most FPSers are used to.