I didn't put much stock in his actual test or the results. As I said in a post earlier about them, he doesn't really give us a basis for his measurements. What does "get beat" mean to him, for example. And given the phrase "maybe 30% - 40%," it doesn't appear that he was being very thorough examining the results.
The thrust of his post and many of the complaints, however, is that the blocking is substantially worse during PA that often, some people have claimed the majority of the time, it is next to impossible to successfully make a pass (not successfully complete, but to pass altogether). My tests meant to show, and have convinced me, that it is next to impossible to tell if the blocking is any worse. I haven't noticed any significant increase in free running D-Lineman going from regular passes to PA passes. The issue as put by him and others was that straightforward, and I just don't see it.
What I do see, however, is what was mentioned by some, maybe you, in regards to another issue - blitzing defenders simply do not react to the PA. And since the CPU blitzes as much as it does, a higher number of PA plays result in instant pressure. This is not new and I admitted this was a problem pages ago.