I'm sure this is all helpful, arguing the virtues of leveling up a TC.
On that note, if the parking spot is so out of level that blocks or disconnecting the camper to jack it up level is necessary, by disconnecting without getting semi level with blocks, you're taking a significant amount of camper weight off the truck and onto the very extended jacks which makes the camper unstable.
But carry on.....
Then again I learned in here yesterday that some replace their wheel lug studs every 4-5th tire rotation, so I have to beleive there are other totally counter-intuitive things that people do and then live and die by the assertion that it's the right way to do it.