Have a look at this fight (and it is not the exception):
http://www.mmatycoon.com/fightcommentary.php?FTID=997559
Fight ended in round 1 with a submission, in it there were 3 sub attempts, takedown, clinch... and the fight rating was 26%!!! Really?
Maybe this is representative of a crowd in the early 2000s, but it is a bit ridiculous now.