Actually, here's something for you to chew on.
ya I hate playing 28 against 17 in 10ths. Especially 64th note 10ths.
There is a point at which transcendental virtuosity morphs into unplayability, and honestly, i think this point was reached in the 19th century with the Hammerklavier, Brahms Paganini Variations, Feux Follets, and many other pieces of similar caliber.
Peoples' hands, at least to my knowledge, haven't evolved sufficiently in the past hundred years to allow people to do things with them that Liszt couldn't have done. What HAS evolved is our methods of instruction (though maybe not in the USA), which allow many more people to play at a Lisztian level at earlier ages.