But it seems that every time the "unpermitted location" changes with every protest! In this case, it's "the area around parliament" and "border crossings" - in Quebec it was "this particular road" or "these schools" during their "Red Square" tuition protests.
In my opinion, Parliament is almost always a valid place to protest - outside a politician's or ordinary person's private home, much less so.
By invoking these emergency powers, I think it's hard to dispute that the Prime Minister's Office is stopping a peaceful protest!