Zabarnyi is decent on the ball, but Pacho isn't. Point is though that they had tons of time on the ball after the initial period.
Why? Because their fullbacks are so damn good (and probably doped to the grills, but that's a topic for another thread).
Meanwhile we couldn't get out from the back mainly because our fullbacks were so vastly inferior on the ball, in speed, in acceleration, in fitness and in doping gear (but that's a topic for another thread).
That's the major difference, the point being that PSG didn't need their starting attack because the system absolutely overwelmed us, mostly because of their doped up fullbacks being so much better than ours.
That is where the game was won and lost.
Oh, and Bernal probably shouldn't have come on. Well off the pace- literally.