That is the case. The only WTO theoretical dispute settlement penalty is to request Canada to bring its legislation into compliance with the determination of the dispute settlement panel. There is no penalty; there is no monetary fine. Frankly speaking, I think Canada would gain greatly in the opinion of the world community were someone to bring a lawsuit against them at the WTO alleging that Canada was trying to do too much for poor people in developing countries.
On October 26th, 2010. See this statement in context.