I "kind of" understand it but to tell you the truth, I went off tiptronics, semi -autos what ever you want to call them after owning a couple myself. To me and any driving enthusiasts, semi-auto, auto or paddles they're all just automatics, not anal descriptions but two pedals = auto. Nothing will beat 3 pedals for pure driving skill and enjoyment. I've had a couple of tiptronics, one on the steering wheel and one on the shifter, they're OK but still........
I do understand the principle of this new system maintaining drive to the rear wheels all the time but you can do that in manuals (power shift) and have the added bonus of a snappier launch from dumping the clutch. But, that takes it's toll on the trans and is probably more suited to straight line. Manuals are always quicker around the track same car vs same car different transmissions. The ability for the driver to have 100% control is what it's about. All these autos out now shift nice but they always have a delay every now and then and won't shift down at certain rpms as this is a design protection as far as I'm aware.
At the end of the day you can't heel toe, double clutch, fake clutch, dump, side step, etc, etc, in an automatic and that is what does it for me. I've had it with autos lol. Nice for a cruiser with nice straight line pep but yeah, I know you know what I mean so I'll leave it there.