You have ET according to your sig, get on the road then coast and see if the ET generator slows your truck during coasting. The FCA etorque video stated low speed coasting, not highway or surface street speeds.
When I originally started looking a new Ram, I read the same thing on etorque and said no, I don't want that as that would be counter productive to fuel mileage however after watching the video, I learned that it doesn't work that way, from any speed, only during slow coasting.
But again, you have one so take a drive and see for yourself