I don't put much stock into PCL either. JPA was a FSL All-Star, had a pretty good year there and also did pretty well in AA which has better pitching. To put any comparison in perspective, with my admittedly piss poor math skills. JPA had around 1745 MILB PAs before he made the MLB team. Kirk had like 619 prior to his debut, so very hard to compare apples and apples.
My point was, they both had amazing debuts, JPA almost hit for the cycle and had 2 Hrs.. We all saw how that worked out in the end. So, I like Kirk, I would have him on my Fantasy teams (that is my seal of approval but, I think we should be tempered in our expectations and excitement at this early stage.