It's hard to say why those AK trucks' lights are pointed skyward. In my TC and probably most, the black/grey tanks are at the back. It doesn't take a lot to realize that as the freshwater moves back to the black/grey, the COG changes. That is unless you dump. Of course, it could also be they lost the air out of the airbags due to a leak or broke something.
My guess is there are just as many overloaded DRWs as SRWs if we are talking about what the sticker says. Based on looking at specs, there are many older DRWs with only 800-1000 lbs more payload, but carrying much longer and heavier 11 1/2 campers.