I'm convinced that most everyone is now making up random shit for things to complain about. 
Happened to me for the first time today, felt exactly as you describedFor reference mine has occurred in sport - auto everytime and always between 80-85mph in 8th. It’s almost like it wants to downshift and then decides to upshift immediately… makes the cut for the gearshift and puts it back in 8th. So it’s like it just bumps the clutch really fast. I’ll extract the TCU when I get home and look at the calibration.
Yeah esp in sport modeanyone has random stutter when driving like 5mph through a parking lot etc? Barely touching the gas pedal. The truck behaves like it's going to stall. It's not every time but I noticed it quite a few times. Never ends lol