There are already provisions that are similar to that in PIPEDA and other statutes, but with more safeguards that would a require privacy impact assessment, a research ethics approval, or reporting to the Privacy Commissioner. There are also provisions in the Statistics Act that allow Statistics Canada to compel that sort of information.
I share your concern when it comes to something that's so open-ended. One of the things that's a hallmark of good privacy accountability is an analysis and a determination of the inherent privacy risks and the mitigation steps that we can take. One thing I would also notice is that so many of those provisions are discretionary. They don't require the organization to disclose it; they permit it to do so.