Virtuosic or not, it is actually very well written, and if you had a chance to try it on the piano it is very pianistic. Hamelin's virtuosity is very natural, and not at all forced - this comes out in the writing too. The negative connotation of the word "virtuosity" came out of the slave-morality of the underlings; as far as I can see, there is absolutely nothing negative about the virtuosity of this etude, and if you can master it, the virtuosity can be very expressive too.