When we do a flush at the…
When we do a flush at the dealer, if the fluid is burnt or otherwise really worn out, we will reset the transmission adapts, this resets all the shift points, pressure, and general operation of the transmission back to factory default. The technician is supposed to go drive the vehicle and get it back to a functional baseline. But if you reset it, and then have a customer with a heavy foot, which everyone has nowadays, it will exacerbate the ard shifts and the like.
The transmission isn't "worse" just different, and customers need to understand there is a learning process for both the driver and the truck.
One thing I will say, is people drive very aggressively, especially with new vehicles. I don't know why that is, but it's not great for the vehicle, just because it has a warranty doesn't mean it's indestructible. People need to test drive vehicles before they buy them. And that includes towing your rig if you have one, because buyers remorse is not a warranty claimable problem.