Sticking to the original question, the answer is a resounding YES!
Being a previous CJ7, FJ55, FZJ80 (three of them) and FZJ71 owner, who has wheeled his 200 series pretty hard, I can say that the latest Land Cruiser has surpassed all my expectations.
When I got my UZJ200 (yes, with the 2UZ engine) I even kept an 80 series for a while, just in case the new car wasn't good enough for my offroad needs and wants. Needless to say, that old truck is gone and I'm not looking back.
The CRAWL system, which at first I regarded as a silly thing worth only for fooling around with, has more than once taken me where fellows in front and rear locked 71, 78 or 80 series have been unable to go unassisted.
Please let me repeat this. I have helped an OME suspended front and rear locked 71 series up a rocky hill I had previously climbed with my 200 series, thanks to the effectiveness of the CRAWL system. There is a picture of this event here:
https://forum.ih8mud.com/200-series-cruisers/257436-200-series-picture-thread-15.html#post5989130
And more than once, this big, fat, heavy truck has surprised me with its capabilities, even when I expected it to get hopelessly stuck in deep mud with all that weight, which keeps worrying me.
As much as I loved the 80 series, I regret to say that after the 200 series experience, it now seems dated, slow, clumsy, noisy and uncomfortable.
That said, now my main concern is related to its fording capabilities, considering the many electronic systems inside the passenger compartment, which is why my next mod will be the installation of two 1.000 gph bilge pumps to keep all that stuff as dry as possible.
So in my experience, yes, the new gizmos, particularly the KDSS and CRAWL combination, even without the 380 hp, beat locking differentials under almost any circumstance I can think of.
Please pardon the long post and the poor english.