Manufacturer Says this is OK

Copy/paste from our 06 Chevy Owners manual;

Here is an example of proper truck and camper match:
A. Camper Center of Gravity
B. Recommended Center of Gravity Location Zone
When the truck is used to carry a slide-in camper, the
total cargo load of the truck consists of the
manufacturer’s camper weight figure, the weight of
installed additional camper equipment not included in
the manufacturer’s camper weight figure, the weight of
camper cargo, and the weight of passengers in the
camper. The total cargo load should not exceed
the truck’s cargo weight rating and the camper’s center
of gravity (A) should fall within the truck’s recommended
center of gravity zone (B) when installed.

The "zone" in the picture (could not paste) is the entire wheel well...
Of course, the more mass you can shift toward the front axle the better the vehicle should handle as the majority will be over the rear.
B

COG is a range in the bed and it is specified on the glove box sticker and/or in the owner's manual.

On my 2002 the COG range figures out as the ENTIRE length of the bed!!! As long as the COG of the camper falls *SOMEWHERE*, *ANYWHERE*, in the bed, Chevy says it's OK.

Most rental trailers and trucks are boldly printed with "Not to exceed 55 mph" or something to that effect too. Not many follow these recommendations. Same with food portions. Ever check the recommended serving for potato chips?
Still, those recommendations exist for a reason and when something just LOOKS awkward, I'm leery.
Best suggestions above are to check the weight capability of the truck and then the weight of the camper. The balance might not be perfect but at least you'll know if you're grossly overweight.

Recommend doesn't equal nothing else works. As far as the camper brand goes, I'm not sure why there was stealth. It would be easier to discuss if we actually had the model/brand. Oh well.

From the previous post, it doesn't look to me like Ford recommends the COG behind the axle by maybe more than an inch or two. Kind of hard to tell from the sketch.

Here's the camper loading instructions that came with my truck from Ford.

Chuck

Instead of asking the camper manufacturer if it is OK, why not ask the truck manufacturer if they think that amount of weight that far back is OK? You just might get a different answer. And some truck manufacturer's provide that answer in your glove compartment on a piece of paper that discusses camper loading with the new truck. I know Dodge Rams have it.

Short bed/big camper club.

Ram 3500 Lance 881 by MooringProduct, on Flickr

Assume this is a very...similar?...camper to our EC850. You can see the COG is directly above our axle (BTW GM shows a "range" for COG centered around the axle in their Camper Loading Guide).
You can also see our truck is a (06) SB.
Anyway, EC says the COG has shifted FORWARD 1" with the 2015 full wall slide...so I am confused why you are clearly showing the COG behind the rear axle.
How long is your bed?
I also took off the "guides" that EC provides...they keep the camper ~3" off the bed wall. This allows me to load forward a ~ 2" which helps put more on the front axle.
FYI; I did add Supersprings and rear anti-sway bar which both helped a lot.
The truck handles fine, we have done 5k+ miles this summer with the new camper...
We pretty much always leave with a full h20 tank (49 gals). Love the EC850; the floor space, inside and outside storage, and large tanks are incredible for a SB camper.
Very pleased so far...our 1 yr anniversary with it this month.

Agree with kohldad...pictures can skew things...and you really will need to visit the scales to know for sure.

Do tell about the "mystery" camper in your pic...

It looks terrible and I wouldn't do it . . . until I made some measurements at the scale weighing the axles. While the empty COG may be behind the axle, it is hard to tell how far behind the axle it is. Only a couple inches will not effect the front axle weight that much anyhow. And the camper may be light enough so the rear axle can afford to carry the weight.

Is it the Manufacturer or the Dealer that says it's okay? As we all know, most dealers will say anything to get the sell. They really don't want to know the truth so they can't be held accountable.

Pictures can be very deceiving on how bad things are especially when they have been resized. It also looks like the picture was taken from an angle, not square to the COG point which would make it deciving. Last weekend I looked at a camper which the picture clearly showed a front jack leaning about 8" out. However, upon inspection of the camper, there was absolutely no learning to the jack and it was perfectly as it should have been. And no, it wasn't repaired between the two as I inspected the caulking very closely and it was the factory caulking.