There's pictures of newer Ford's doing the same as that Dodge with the camper... frames are just cheaper now and they have stress points... that front tiedown is likely a bar that goes side to side to hold the front down, the tiedowns mostly keep them from sliding around while driving... my camper has spring loaded deals, the front ties into the bed but attached with bracketry to the frame, the rear is just some bolts on the outside of the bumper... Part of the problem with that truck above is that camper is likely around 5000 pounds then they have a motorcycle hanging 4' or so behind the truck's bumper... With truck bed campers the 9-10' range is much nicer on the truck, that there is a 12' (maybe 11' 6", whatever...), the COG might still be near the rear axle but maybe further backward...
I've towed a John Deere 35G mini excavator with my SRW F350, it wasn't much, I think they're only 6k pounds, the Ford 9000 I hauled once was a lot more, and the 18k pound combined load I haul halfway across the state a few times a year is up there too...