To me, the logical weight to talk about is "what does the trailer actually weigh, ready to go camping".
For instance, my 2012 189FDS has a claimed dry weight of around 3050 pounds. It actually weighs 3780 as it sits right now, with all the stuff ready to go camp ( water tanks empty ).
Yet it has a GVWR of something like 6000 or 6500. I would never have a need to pack so much stuff in it to get the weight that high.
That's my take on it.
PS. My camper is about 120 pounds lighter than it was when I brought it home, because I removed the bunk bed that was over the regular bed in front.