LOL Good Joke ¡¡¡
Ok...
Maybe it may not be that easy, but its not that hard (and im not very good)
The parallel thirds are hard yes, but they just need practice.
The Rondo Capriccioso is not as hard as say...Ravel Sonatine (this is NOT a joke).
I know this one teacher in DE who taught her student the RC in 6th grade (horribly played), then the next year, Brahms Rhapsody Op.79 no.2, and the next year, the Chopin FI. Ugh... (all overplayed)