it's not adding up for me either. But oh well. Jam ratings aren't that important in the end anyway. Hollow Knight placed 126th when it was first released as a jam game.
Yeah, I was SUPER surprised when I seen the results, I actually thought there was something wrong with how the page loaded or something.. And yes! Jam ratings are not everything at all! Someone on the jam's discord said once your in the top 100 or so, there is very much an element of luck with just not getting review bombed for example, which I completely agreed with. No hate to either of your opinions!