I watched the behavior on my head unit that can display a bunch of parameters on the way to Colorado and back. While his statement might be said better, he's pretty much right.

I mean, you can watch it start to apply throttle without shifting until engine load hits 100% and then it downshifts. Then it starts backing off throttle till it stops accelerating, which leaves the RPMs too high so it upshifts.

That's pretty much the behavior you get with any car that doesnt have an excess of power down low, though when you're rocking an 8 or 10 speed modern transmission or a (shudder) CVT, you dont have nearly the jump in gear ratios to notice it.