The 2019 GM 6.2 makes 320 lb-ft at 1700 rpm, eventually increasing to 366 at 4,000 rpm. That torque curve at 1,000 rpm lower makes for easier and calmer driving. I don't know which engine you have, but if that torque curve is flat, you're also running turbos, which isn't what we're talking about here. In normal suburban driving around the city, the 5.3 liter in my truck shifts right below 2,000 rpm and I keep up with traffic just fine.
Also a turbo, and not what we're discussing.
Yes, and the only way they could get away with that is with turbos and three additional gears, but it hasn't improved drivability. A 3.4-liter variable displacement pushrod V6 paired with the current 8-speed auto would have been nearly as efficient while offering better around-town feel.
I do think you're right on this one. Putting an advanced DOHC turbo with a 9-speed in a budget auto just isn't feasible in the long term. People buying in that market don't typically maintain their cars as well. The first to market with a budget EV that can charge anywhere and doesn't look like a dorky egg (Bolt, LEAF) could do very well.