The new 
is trash. Also 25% crit on all a.s crit items? Old PD was better. Did you guys want a 
for adcs? Shit I preferred it when you could even build gage on adcs. Bunch of meth heads on the dev team. Fixing things that don't need to be fixed
One thing I think is good about the new PD is that you get a pseudo defensive item with little damage trade off. Like sure building steraks gage is nice for the defense, but in terms of a Crit scaling adc the PD is going to give you way more damage. So let's say it's getting into late game and I'm looking for some defensive options, but I already picked up my GA, so picking up something like hexdrinker or scimitar is just going to gut my dps. I could pick up a PD as my second zeal item. This is especially useful on low mobility auto attackers like Ashe and Sivir. I'll admit it's pretty niche, but the option is kind of nice when in solo Q you feel like you have to hard carry so therefore need the most damaging "defensive" item possible. There are alot of games where I even pass up GA for a BT late game simply because I feel like I won't be able to hard carry if I sack damage in any way.
I think where we are at now is just a poor design in game style honestly. The game was better when carries could afford to pick up that one truly defensive item liek the original GA or original Banshees and just go 5 damage items. It required us to be more thoughtful with our item selections and have to a real decision around whether or not to go defensive. Now days you pretty much are guaranteed to go for a GA or M-Scimitar as your 5th or 6th item, but only one of those two cuz you won't do enough damage anymore if you do both. The only outlier to this is if you are completely snowballing super hard and can just go full damage. The game was better when you had a real decision late game, do I go defense item? Or Lifesteal item, or second zeal item? or pen item? Now you don't even need a LW item in most games so your build is just cookie cutter all the time.
I used to abuse on 
Pretty sure that's why they reworked it.
