Ontario law allows observation of doctors at work [Apr. 8 - Canadian Medicine]

The following statement by a politician falls under the ‘duh‘ category:

“And pick any health care professional. We’ll say physicians. Just remember that 50% of physicians graduated in the bottom half of their class; 50% of nurses graduated in the bottom half of their class.”

Does graduating from the bottom of your class mean that you will be less competent after graduation?

The effects of problem-based learning during medical school on physician competency: a systematic review.
CMAJ. 2008 January 1; 178(1): 34–41.

Does anyone have the answer?