Like I said above, have you ever watched a bunny hop? They don't get very far off the ground. That's all you need with a loaded touring bike and it's something that comes in handy from time to time. Just getting the rear wheel to clear a pothole, ledge or curb will go a long way towards not messing up wheels.

"Bicycle touring" also covers a very wide range of activities. Bunny hopping on a road has limited utility...but is still a skill that comes in handy. Bunny hopping off-road is something that is much more useful and common.

You don't have to get the wheel a foot and a half over the obstacle. All you need is a few molecules of air and that qualifies as a "bunny hop".