I'll add another data point, from which you can draw your own conclusion.
My tow rig (aka second DD and general purpose vehicle) is a 2014 F-150. It's a 2WD ext-cab shortbed with their heaviest 6-lug tow package, such as that is, which gives it a GVWR of 7500#, GCWR of 16,900# and a "max loaded trailer weight" of 11,300#. The 3.5L Ecoboost is rated at like 375hp and 420tq.
I've pulled my Blazer on a two-wheel dolly with brakes, quite happily and safely. It will go up hills, albeit not speedily, and brakes like the Blazer isn't there. It will, not, however, go much above 60MPH, between wanting more power and the Blazer bouncing about. That works fine for me, as the limit is 55MPH for towing most everywhere anyway, and I don't tow the Blazer often. When I do, I drive in the slow lane and get there when I get there. No rush.
For towing I wouldn't mind a SuperDuty with more motor, but I can't justify it for how rarely I'd need it. The rest of the time I'm good with this, could even have gotten a two-door shortbed (easier to park.) My last truck was a full crewcab, longbed, dually, and while it towed well, it was a pain the rest of the time. Believe it or not, you CAN have too much truck
Point being that you've got a ton of variables to juggle, so it's hard to say yay or nay right off. Figure the tow rig ratings (GVWR/GCWR) against your trailer+rig combo, your terrain and frequency of towing, and your driving style.
-- A