Did that work well? I've never ridden a snowbike, lots of miles on offroad/dirt bikes - and I can't IMAGINE doubling someone up something I'd want to ski. Front wheel gets too light. Maybe the track helps that.
I got a utility sled last year, and I freaking love it - especially if there's a road in, it is DESIGNED for two people, comfortable, relaxing, ahhh - Canadian on a sled is easy enough, but being able to just sit down and relax is a good thing; riding double on a snowbike seems like a lot of work.
Now, it sounds like the OP is envisioning using the bike to get to the BOTTOM of the skiing area - then skin up. I guess it'd work for that just fine, but seems like a $$$$$$ way to get there, when you could pick up a couple of M7s or whatever for the cost of the kit alone.
Dunno. I suspect it could work, ESPECIALLY for just GETTING there, but I'm not sure it is better.....
....unless that's what you've got & you don't want to buy a sled! Then it makes all the sense in the world.