should PTA be multi-proc?

I feel like a lot of PTA champs dont have a good teamfight because of the limitations this rune gives. It barely does 2000 per game meanwhile conqueror regularly hits 3.5k damage per game, and is quite frankly more effective. And not many ranged champions can actually use conqueror, other then draven. Its either make it multi proc or rework it again to something more team-fight-oriented