You may pretend that it “counts,” but it doesn’t really count.
The PNS is for when the tiger is gone and you can relax.
The SNS revs us up, into excitement, high energy, and stress.
The PNS is the “relaxation response”: it calms us down and makes us warm & fuzzy & comfortable.
Of course, it’s ironic that the student, falling into this predicament for the very first time, typically has absolutely no idea how frequently it happens.
In my mind, the even sadder part is how avoidable this would have been: had that student been properly appraised of this possibility, she could have take concrete steps to avoid it, but these steps must be taken consistently for the months leading up the GMAT.