I joined a Facebook group for the Aussie Holden Colorado & I saw some people talking about the throttle controllers so that's what brought it to my attention. The newer vehicles with the "drive by wire" have a different feel than the older mechanical accelerator pedal feel so maybe that's throwing some people off. Although I'm not saying the trans programing for fuel economy is not a problem.
Knock on wood, but for whatever reason I haven't noticed any "Chuggle" or throttle dead spots on my truck. Maybe some of it is the truck (trans programing) adapting to how the driver drives, but it could also be the driver learning what input the truck needs to get the desired results.
I'm actually quite impressed with the HP they get from the naturally aspirated 3.6L engines in our trucks, light years ahead of the 4.3L Vortec I had in my 2001 ZR2 & probably more power than many V8's that were in the mid 80's trucks. Heck a 71 Chevelle SS with the min 350 2 barrel was only rated at 245 gross HP, our truck would of been GROUND POUNDERS back in the day! LOL
My 1995 C1500 with the 4.3L had 195 HP at 4600 RPMs and 260 ft-lbs torque at 2800 RPMs.
My 2001 Tahoe with 5.3L had 285 HP at 5200 RPMs and 325 ft-lbs at 4000 RPMs. (Curb weight, 2WD is 4,828 lbs)
My 2015 Canyon has 305 HP at 6800 RPMs and 269 ft-lbs at 4000 RPMs. (curb weight, 2WD is ~4,200 pounds, 86% of the Tahoe.)
2015 Canyon SLT, Copper Red, 2WD, CC, SB, V6, Tow, blk leather, factory spray liner, safety pkg, generic roll up bed cover.