50kW CHAdeMO stations are generally 125A units.
At lower states of charge, the 125A is the limiting factor. For example, at 320V and 125A, you'd only be pulling 40kW. On AWD, 7kW is then taken for heating the battery. Perhaps about 1kW for other functions (computers, pumps, etc.). You're left with something like 32kW!
At higher states of charge, you run into the limitations we usually see with Superchargers - the car starts being the limit on charge rate, not the station.
The middle (say, 50%) to middle-high (80% or so) portion of the battery charges fastest on CHAdeMO.
Someone in the Osoyoos thread mentioned Castlegar is probably next. That still leave a ~485km gap to/from the Fort McLeod Supercharger.