We would see less bottom tree strikers if titans had a viable crucible subclass other than bottom tree striker. They all kinda suck in pvp other than striker, sentinel literally punishes you for blocking damage with your shield by almost instantaneously ending your super when you block anything more than one sniper shot and hammers has so little resistance someone with a shotgun can run up and kill you with one shotgun shot or even a couple body shots from a high impact sniper.