Yeah. The difference between an 80 and a 100 is which side of bed the proctors woke up on. A good example of this occurred at my tasting exam: we judged a bock entered as a "baltic porter". I dinged it hard for no roast, no hints of dark fruit, no alcohol warmth/complexity, and even suggested that it might place better as a bock! The proctors (2 Masters and a Grand Master) gave it a score of 35.
That's unfortunate. I'd hope the proctors would take the mis-categorized and seriously flawed beers and rate them as they'd expect the student to rate them.
I'm just now looking into studying for BJCP, so I'm still a long ways off from any tasting exam! Are there any hints (beyond the BJCP resources) for studying given the recent exam changes? What about for a non-brewer studying for and taking the exam (my brother is also interested, but he does not brew beer)?