One of the virtues of PIPEDA in my view is it is written in general terms, so it's conceivable that certain concepts like personal information, consent, or other concepts that are fundamental to PIPEDA might be further clarified. But on the whole I think it's better to have legislation written in general language, which allows for flexibility in application, a possibility to make the act relevant to various circumstances and to give practical advice.
On February 17th, 2015. See this statement in context.