I'm not so sure that the Toyota engineers, when spending billions on R&D, focus too much on the 20 people that might put 34" tires on their DD/highway 4 runner.
Was said 'turd' re-geared? Also, it IS a body on frame brick with a good bit of drivetrain rotational heft to get up to speed.
However, all of that can be taken care of with a combination of gearing, lighter materials, trimmer body, re-mapped ECU, trans ratios, and tcase ratios.
If they really wanted to.
And that is why it comes down to the buyer to make the choice.. I'm certain that if US spec had the option of 4 liter and 5.7, the former would have been disco... just like the 4.6 from early 2G Tundras.
Not sure if the turd was regeared, that seems like too much work. Not in the same class per se, but a G63 is also a body on frame brick.. IMO, the 5.7 is barely enough with or without 34s