I didn't have an older DRW so I can't directly compare. I can say you wouldn't see stickers like this on the older one ton trucks:
The "rumor" is that most truck campers are over their GVWR. I guess I may be one of the few that isn't. With full tanks (Including 50+ gallons of water) on my AF1150, 3 people and packing heavy for an extend camping trip I stopped at the scale:
The only suspension modifications I made was to add Stable loads to make it level. No airbags, no spring modifications etc. The truck handles and corners well and we have gained a lot of confidence in the truck going on some pretty rough forest service roads. I'm sure the new GM and Dodge trucks behave similarly well.