Yeah, some truth to this.  My sisters log cabin in 100 Mile survived a major fire on thier property, thankfully it was defended by firefirghtes on the ground; when it got hit by a water bomber, blowing out the windows and sky lights.

But it survived, and we go every Christmas.

They also settle, leaving gaping cracks that need constant maintenance.  And they look cool, but if you're planning on refreshing the look of your place, forget it, you're logs for life ;)