Jokes are all fine and dandy until they are insulting. “What was your CARS score?” Is an obvious joke, but it is also an obvious mockery via questioning the intelligence of a user. I am all for humor (as I have overzealously displayed elsewhere) but insults, particularly insults for the sake of laughter, particularly insults for the sake of laughter in the absence of any advice, really are not needed and are frankly uncalled for.
To address your question, my best guess is that it is going to be school dependent basically based on what they tell MSAR to put there. For instance, Mayo only states a class of 48-52, but that doesn’t include their 4-6 MD/PhDs who are also not included in the MCAT/GPA statistics (learned this at interview) but Pittsburgh all of that is included. So, basically it is just because different schools tell MSAR different things because this entire process is wrought with dysfunction and inconsistency