if the only comments on a sim detail were about the PA you have little to be concerned about!
I hope it holds true where Framer works and I only wish it were true where I do. If I received such a comment after sim, it would be clear signal that instructor has received orders from above to find as many faults as possible. Good news would be: he couldn't find anything serious so he resorted to nitpicking. Bad news: someone relevant is after me. Thankfully, Oz is very remote from my backwater so chance of such a scenario playing out there are poor to nil.
As for PA itself, there's nothing I would add or take away.