EXACTLY!
Its just a tool
Some cars dyno great with nice #'s and some don't. Cars with a turbo are prime examples of great #'s

The numbers from my car are pretty good but they were having troubles keeping the car in one gear. Since then that issue was delt with. When I was attending All Chrysler Nationals in Carlisle PA they could not get my car perform proper. Lack of exp with an auto I guess and they would not anyone else up there to do it. (videos on youtube)

But I'm happy with the results. Lower dyno numbers but A/F is perfect along with everything else to make a reliable street car.