That's probably all too true.
But I do see opportunities to come closer together and yes, it needs an adjustment of the CCG's (and IMHO) the RCMP's statements of work/contracts/ training etc.
The RCMP already does some basic military training when you consider first aid, small arms, tactics and even drill. The first thing that I see about the French Gendarmerie and the Italian Carabinieri is that they can march like military units and carry arms. When I see the US CG I see that their boats/ships carry armaments appropriate to their security duties. They are even statutorily part of the "armed" services.
It's not like there aren't models of what the CGG and RCMP could be transformed into with a little effort. And yes. I'm all for the RCMP becoming our military police and transforming our MPs into a security force, a POW handling agency and traffic control. Leave "policing" to the RCMP.
Sure there are obstacles; they can be overcome. All that's missing is a government with a will to move the goal posts.