I fully agree, Hexameron. Virtuoso playing is not (just) about tricks. It's also about musicality, physical stamina, etc....
Wibi Soerjadi is a Dutch virtuoso pianist of Indonesian descent. He is world-famous in all of Holland
Sort of the Dutch answer to Lang Lang and Volodos, though I will not indulge in comparison. He sort of specializes in romantic pieces and rabble-rousing transcriptions/arrangements, some of his own. Admittedly he has an amazing technique, a huge bag of tricks, and can play about a million notes per minute.
The '3-handed technique' is a pianistic device, employed most prominently by Liszt and his peers, to have a melody in the middle register that is shared by two hands, so that it seems (or should seem) as if 3 hands are at work. Il Sospiro is a well-known example of that.