That's interesting, but not necessarily factually correct. I shoot factory ammo from my G19 (Remington included) , Post chrono my G19 is always in the 128-132 pf range...Comfortably above the 125 pf floor.
ALWAYS is a strong word. Any long time shooter of winchester factory whitebox 9mm will tell you there has been a change in the quality of their product. Winchester 22 ammo used to be my "go to" brand , not anymore. Huge demand for the amount of ammunition lately has caused a poor quality of product to appear, fact? NO! , Opinon...yes!