It is interesting to read your BMW-centric perspective, as I can say pretty much the same things about my GX460. That's neat you can run the Sequoia in 4WD without the center diff locked, just like my GX's full-time 4WD, which is excellent for winter conditions and not having to switch back and forth between 2WD and 4WD, along with worrying about front diff bind.
I do some serious off-roading in my GX460 (it has a lift, armor, AT tires, bull bar, winch, etc) and have been impressed with A-trac in 4Low. I'm unsure if the Sequoia features that, but it has gotten me through anything challenging with no rear locker, thus far.
The lazy feeling of these machines makes me take my time, never in a rush driving the GX. Occasionally, I will get on it just to clear the cobwebs out; otherwise, it just loafs around.