Not much truth in advertising with most any TC manufacturer, now or ever.
These campers that are supposedly for "1/2 ton" trucks always end up weighing hundreds of pounds more than advertised, and they're generally pushing the payload limits for the trucks they're supposedly "designed" for at their advertised weights...
All that before you put a single pair of socks in the sock drawer, let alone anything else you need for basic day-to-day living... It's a crock, but nobody ever holds them accountable, and the "jam a chunk of well casing between the axle and frame, it'll be fine" crowd isn't helping things.