The F450 pickup absolutely is more capable than the F350. The bigger brakes, 19.5” tires, and the wide front axle that gives it a much better turning radius are all the reasons I need to choose it over the F350. That doesn’t mean the F350 can’t handle a heavy payload, because it obviously can. It just means there are features available on the F450 pickup that aren’t available on the F350. If you want those, you have to buy the F450 pickup.
There are also trim packages available on the F450 pickup that aren’t available on the cab and chassis trucks (King Ranch, Platinum and Limited). If you can get past the idea that the GVWR is some magic number that must never be exceeded, the F450 pickup seems to me like the ideal combination of a pickup and chassis cab without having to put your own bed on it.
The GVWR of the F450 pickup is intentionally limited to 14K by Ford to keep it a class 3 truck. Anyone who’s familiar with corporations that have multiple product lines will understand why they try to avoid having overlap and competition between them. It does the company no good to have the F450 pickup gvwr set >14K so that it’s technically a class 4, and compete with the cab and chassis F450’s that are all class 4. The F450 pickup isn’t intended to be a vocational use truck.
:):)