Some people are never satisfied. At the end of the day it's still a wider than normal PERFORMANCE truck, with 35" LT tires, 4.10 axle ratio, etc....
I think it's all down to the 4.10 axle ratio.
Increase in power shouldn't matter much since EPA test should be well out of the boost. Tires and increased frontal area/height probably add up to another MPG.
"Never satisfied" is a little dramatic. I think we all love the truck but with 10 speeds it seems like there could be one or two good gears in there for highway mileage.