The central issue with invoking the Emergency Act is twofold: First, it is a step too far in consolidating state power against dissenting citizens. Second, police already had the tools they needed to deal with the occupation in Ottawa but chose not to. If the police had exhausted all their options first (which are routinely used against Indigenous and climate change protestors) then Trudeau may have a case. This did not happen.
The Emergencies Act sets a dangerous precedent- as does Bill 1 in Alberta, and we should not be encouraging their precedent-setting use. It is clear that the systems and leaders have not been listening. Legislation that allows the system to reproduce the same old issues is not going to bring our salvation.