Yes morel hunting is a different type of mushroom hunting than typical. In places that aren't as cold it's even a totally different season. I wouldn't be surprised if the biggest buyers of burn maps are actually morel hunters

Worth noting there's a ton of different mushrooms called morels (though they're all pretty much related and even "false morels" are usually choice edibles) and when talking about the kinds that grow after fires they're usually referred to as "burn morels"