I have only driven four RRCs, two without anti-roll bars and two with. I found the earlier unequipped vehicles very uncomfortable when cornering and frankly a little worrying. The beauty of that, though, is the driver bottles out before grip is pushed to the limit. Anti-roll bars may increase the vehicle's turning ability, but will mask much of what is going on, allowing the driver to get much closer to the edge of the car's limits.
My RRC not only has the DeCarbon dampers (as I said, fitted by the previous owner) and factory anti-roll bars, but also has police spec rear springs. Again, these were fitted by the previous owner, who also had the matching front springs but never got round to fitting them. The vhicle still ahs the original front springs. The resuslt is a good poise with slightly firmer rear, but not over sprung. The Boge strut is still fitted, but with those rear springs, I don't think it's doing anything. The lift is very moderate, probably less than an inch, and is just enough to get rid of that saggy rear look that parked RRCs tend to have. The handling is fairly crips but the ride is very comfortable, even on our potholed and speed-bumped roads!
I agree that LR's engineers came up with a good system, but it must also be remembered that they have to work to a cost and also to a compromise of applications and driving styles. Altering the dampers or springs to suit different applications or driving styles is not a waste, as long as it is done appropriately.