The ugly Nissan van thingy has a payload of 2600 pounds. Why is that not fair to call it a "one ton" ??
As for the Excursion, my opinion is that it was simply a rather crude vehicle, which may have contributed to why it did not sell. Neighbor has one, I have driven it quite a few times, and have pulled my small bumper pull horse trailer with it. As I said....it drives like the super duty that it is....which is to say it's rather crude. Effective, but crude. Bring plenty of money for gas too, even in day to day use.
And no, I am not trying to slam Super Duty F series. We have a F350 dually, and I love driving it....but if you get out of a SD and into my Frontier, or a Tundra, you will think you are getting into a sports car by way of comparison.