I think you guys are arguing over something trivial, although some interesting points have been raised by both. Clearly it is impossible to do PERFECT legato, especially if you get to a really fast tempo, but that certainly does not imply that using the pedal is satisfactory. The musical effect is simply NOT the same. It seems the best solution is to practice as much legato as possible ("legato" often implies, "as much legato as possible," no?), and pedal on top of that; but certainly the pedal should not be used as an excuse to forgo the technical work required on this piece.
Another question: any advice on the 24 13 pattern that appears in measures 15-16 and elsewhere. Is there a specific hand position that I should be trying to achieve? It seems that the 14 25, as well as the chromatics are much easier to play clearly...