Most people do not tow, anything. And most that do, it's lighter loads. 4000 lbs mean it can tow a open trailer, a PWC, enclosed motorcycle trailer, even a lighter boat. It's all the truck many need. The same facts are why I bought a Ridgeline instead of a full size. Didn't need or want the crap BOF handling, didn't need the capacity, and wanted SH-AWD unibody handling. They say the same crap about my "truck" yet it has more payload capacity than a Raptor.
If it's not a full size BOF truck, well there are going to be those who persistently and consistently whine about its existence.