The evidence before the committee is that right now they're the only entities that anyone could imagine were interested. If it were left as vague as “entities”, it could eventually be disclosed to, for instance, private sector corporations. It could be disclosed to others, such as private sector future employers. It's one place where, when you're dealing with privacy information, one would like precision in the language.
Since the only evidence before the committee that I could find in the transcripts of who the entities might be mentioned provinces and territories, why not say that rather than leave it overly broad?