The DD tables I was referring to are the stock "Factory" settings for a 7spd manual which mine is. Yes, I understand the (axle torque and VSS) vs. (RPM and Engine torque) Mine used the latter. Of course, it doesn't take as much torque to keep a car moving as it does when accelerating from a stop; duh. It's when you want to accelerate when it matters. So, it takes a stock C7 Z06 approx. 3 seconds to go from 0-60 MPH but it takes another 6 seconds for it to get to 120 MPH. (Twice as long even though you already have the inertia of going 60 MPH) and only want to increase another 60MPH.) Why is this? It's the loss of mechanical advantage (Torque multiplication). With each gear ratio change when upshifting; "torque multiplication" is less and less, and there for torque to the axle is less. I think this is what you're arguing is the reason to request less torque as speed increases. I understand this. but...
Consider this; you're cruising at 60 MPH in forth gear and you want to accelerate to 120 Mph. You go WOT and the automatic transmission down shifts to 2nd gear. Why? It's because your foot (Accelerator Pedal Position) requested "MORE TORQUE" and the lower gear provides the mechanical advantage for that torque. With a manual the same thing occurs when downshifting from fourth to 2nd. When you're accelerating (VSS) "in that gear" you're not losing Axle Torque (mechanical advantage) and therefore should not be requesting less axle torque as speed increases.
I see all the time people on here asking why their throttle isn't opening or is closing and the suggestion is to raise the DD Tables upper row(s) by say 10-20 percent and that's enough to solve their problem, but it could correctly be solved by increasing the torque request as VSS increases to the point where "Predicted Torque" always exceeds "Immediate Axle Torque" and "Actual Axle Torque". Also requesting too much torque at lower speeds that exceeds traction of the tires causes TC or Torque MGT to kick in and slows you down. If TC and Torque MGT are disabled it causes the tires to spin and "spinnin ain't winnin".
Sorry no draggy but I'm sure there's faster cars than mine out there and also faster than yours.