Oh dear,
that quote's from Von Lenz. You really ought to leave the Chopin scholarship to those who know what they're doing. 
Fine. Let's write off that point altogether, for all I care. And now for the important one, that you keep ducking out of?
"Regardless, the problem with basing it all on Chopin is that it comes down to whether people notice. Not whether Chopin said that they will."
Do you reserve your responses for the least significant issues, or do you address important points?
Here is a film featuring some rapid-fire arpeggios (approx 4.30 EDIT- sorry 3.30) in.
I used to play this a few years back, when I had not bothered taking the time to focus on legato in arpeggios. While I could make the passages sound acceptable, they were frankly very messy and frequently inaccurate. The lazy attitude that purports that "nobody can hear legato anyway" used to make for notably audible bumps in the lines.
Seeing as I don't have any kind of God-complex, I'm not under the delusion that the current film now represents flawless execution. In fact, I am very much aware that I still need to make the thumb passing smoother. However, it illustrates how much more becomes possible when you do not settle for the idea that poor quality thumb passing will do, just because of some old quote. If it aint smooth, you need to practise making it smooth- not quote Chopin.
If you're serious about giving advice on advanced repertoire that is played at high speeds, you should start by developing the ability to play advanced repertoire at high speeds. If you haven't put the effort in to gain first-hand experience, you have no business encouraging others to limit themselves by taking the same sloppy attitudes. Interpretation of historical quotes may excuse such an attitude on paper, but it does not produce real-world results.