Since this is only a property dispute and nobody's life is currently danger, there is great value from a law enforcement perspective in letting this continue to simmer. For example, this is a great way to collect intel on the native protest movement and those who support them. Sources of funding, tracing routes of smuggled weapons and explosives, interception of communications, studying of tactics, identifying visible and behind the scenes leadership, identifying those that hold political office and support native terrorism by supplying classified information, the list goes on and on.
Think of this as a opportunity to learn many lessons for the purposes of dealing much better with the next big native issue in Ontario, which is just around the corner.