2015 Dodge 3/4 Ton Really Not Camper Compatible?

I have a 3500 06 Megacab, over the weekend started to research a truck camper for it. I found out dodge verbage that 2500 Cummins megacabs are not designed to handle any truck camper. Only the 3500s and 1600 to 1800lb Center of gravity weight directly over the axle.
Does not look like any truck camper even works for the 3500 except ninimum sized popup truck campers like the Four Wheel Hawk or Northstar 650SC 800 or at nax weight the 850SC.