I find the BJCP judging to be highly subjective. I had a tripel rank a 42 in the Best Florida Beer championship and not make it past the first round, and have that same beer given a 34 in a local club comp and medal silver.
I am studying for the BJCP tasting exam and you are exactly right! There are some absolute faults but many of them are very subjective. I had a Scottish 70 that got the second highest overall score in a local score. It went to the Best of Show round and placed 6th overall. I am starting to get to a place that comps are a great ego boost. Any beer over 35 could be a winning beer...just depends on the comp.