I think if you're sneaky about it, it's cool. I'd let guys bring their bikes up to their rooms, unless they rode in the halls or something stupid like that. We also had a bike check which only Front Desk agents had a key to. It was the Cascade Lodge. The last few years there was, don't know if there still is, a bike shop in the lobby, and you could check your bikes there.
I'd avoid the Tantalus lodge though, I remember hearing about quite a number of bikes being stolen from their storage space.
I also seem to remember that the Coast hotel is pretty casual about letting bikes into rooms.
Funny, even in Whistler some hotel workers don't understand that our bikes are more valued by us than our cars, if we own one.