Well especially considering how vital folios are to the subject, it is ridiculously harsh if it's true. I guess it's motivation in a way though for you to do your absolute best in the subject, to compensate if there were any ill-effects from the GAT. I really think this is suss though, I would think that it's VCAA's responsibility to pay the examiners considering that they're employed by VCAA to mark folios o.O
Seriously, if this were the case, then schools out in bloody woop woop and a lot of the poorer schools out there in Victoria are screwed. To me at least it doesn't seem right, and you're probably entitled to complain if it does affect your score at all.
I'll get back to you before the end of this coming term for sure, just don't know when I'd have time in my uni timetable to head to my old school and speak to her.