Several other classes have way better dmg than PT's. PT's lack surv unless you spec for it, but you lose even more dmg doing so. Your forced to go hybrid if you want to do max damage, full pyro is worthless. Full AP is bad also, but it's what gives you more surv than pyro. It's slightly harder to play, that's throwing the bandwagoners that rolled PT's pre 2.0 off.
Tank wise PT's are fine, it's their dps part that sucks balls.
Also your playing regs, your always going to wreck faces on any class in regs. 90% of people that queue regs are not good or just don't care.
PT's have no place in ranked unless their BC's.