To your point: my initial thought was that addressing post-calibration results assessment/adjustment, while not strictly related to Pro per se, is something that is a) more advanced than the average consumer Audyssey calibrator may be familiar with, particularly someone coming from an older Audyssey and/or non-Audssey AVR and b) a logical "next step" on the learning curve for the user seeking to optmize their system.
I think something like that could have a place in the Pro section of the FAQ. By definition, the Pro section will be for more advanced users, so these advanced issues will fit in fine with that ethos. Someone other than me would have to do the basic framework for that specific Q and A though as that sort of expertise is well above my pay grade. If you or someone cares to frame the Q and A I can easily write it up in the usual style of the FAQ though. It could come under a heading of "After I have run Pro successfully, is there anything else I can do to improve my SQ?" It would be useful, I agree, to have this 'concensus' info all in one place.