Maybe, the real tow rating is just a capability thing that's created by mfg for just durability but not for reality.
My point is this is an rv forum. My 8klb load is totally different than 8klb of rocks, or a mini cat loader on a flat bed. We tow a huge wind load, it is not a factor in current ratings. My coach is just under 34 ft long. Its a square box with a rounded off nose. Its comparing apples and oranges. Stiff cross winds are a factor for all of us. Now add in western region canyons, passes and its a different world.
Maybe a fudge factor of 30% or so should be deducted for rv applications. I know frontal is a factor, but why not side load as well? This is again why weight of the tv must be a contributing factor in stability and ease of towing.
