I agree - the variety of courses on the cross circuit is awesome and a good thing. Vanier is among or may actually be my least favourite, though.
Ya, Vanier is pretty far to one end of the spectrum. I can definitely see riders who lean to the opposite side of preferences in course style wouldn't necessarily be so keen on the Vanier track, even though from a competitive perspective in the end the best 'cross riders usually seem to find their way to the top regardless of the layout.
I know what you are saying about the riders coming more from a road background having a better chance at Vanier (in the dry at least), which is why it's more important to look at trends across a few races/courses before tagging someone as needing to move up a cat.
What Vanier does have going for it is a very "accessible" feel - and location - to pull in new entrants to 'cross racing, so that hopefully those new riders will follow the carrot, spilling over to one or more of the other events and get hooked as regulars in the series. Same goes the other way too, where the other more technical courses draw more new blood from the MTB crowd perhaps, to become series regulars.
Next stop for the SuperPrestige series Oct. 19th (Cross(Port)quitlam) / Oct. 20th (Atomic CX in Mahon Park/North Van) double header for the Lower Mainland, but lots of other stuff going on all around the province in between also for CX Island, Interior, etc. Bring a friend. Or six.