Why is olympic hockey played on a smaller NHL size ice rink?

Usually it's suppose to be played on the international ice rink, which is a little wider. How come they are playing it on an NHL size surface now? So the good teams can't play out their technical skills and team Canada can crash into them with their bodies without even hitting the puck once? Seems to me as... show more Usually it's suppose to be played on the international ice rink, which is a little wider. How come they are playing it on an NHL size surface now? So the good teams can't play out their technical skills and team Canada can crash into them with their bodies without even hitting the puck once? Seems to me as if they just did whatever it takes to get the ice rink that increases their chances of winning the most.
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