When I was in Beausejour last, it was similar once on a local VHF analog assignment than on the wide area system. That might be the norm for smaller communities , having two radios.
Maybe it reflects the fact that they have so much money for comm's that the original legacy systems from back in the day they believe that if it ain't broke don't fix it.
Then, a third party comes along (Bell in this case) and says we have a province wide system you can talk w/other first responders, so they sign on and voila, two radio systems.