Todd Gallagher says yes:
As strange as it may sound to anyone with a sense of decency, there is actually sound reasoning behind it. Because of the geometry of the game, the potential for one mammoth individual to change hockey is staggering. Simply put, there is a goal that's 6 feet wide and 4 feet high, and a hockey puck that needs to go into it in order to score. Fill that net completely, and no goals can possibly be scored against your team. So why hasn't it happened yet?
One answer is that professionalism and fair play prevent many sports teams from doing whatever it takes to win. This is also known as "having no imagination." Additionally, in hockey the worry of on-ice reprisal from bloodthirsty goons would weigh heavily on the mind of any player whose very existence violated the game's "unwritten rules."
What follows is an essay that proves one thing: mocking the obese in print is so accepted in society that the Wall Street Journal will print an entire article that relies on doing so throughout for a punchline.