People see a moose in a parking lot, or somewhere else equally unnatural and decide that its a funny looking, ungainly critter. Put them where they belong and they are an amazingly well adapted animal. Deep snow, mud that would stop anything else, swimming in open water, diving like otters if they feel like it, up on slopes where you have to climb past goats to get to them? Piece of cake to a moose.
Add to that that they are the biggest thing that a North American is likely to get a crack at, have impressive headgear, are relatively widespread and numerous, good eating and that it takes a couple years to snarf one down. Then consider that just about any hunting method will be suitable somewhere, including calling. Moose might be the perfect big game animal. Too bad they aren't dangerous and don't grow tusks.