The font and the pseudoscience leave a bad taste in my mouth.
Forgo skepticism and read it objectively, embracing the possibility that maybe there's something to it. There may not be anything to it, but there might be. Try for yourself. I tuned my bass and guitar down to 432. I haven't noticed too much of a difference with the bass, but there is a very noticeable difference with guitar. But yes, they should have reconsidered that font.
"Forgo skepticism and read it objectively..." First off, I don't see how reading something objectively means foregoing skepticism. To me, reading something objectively requires skepticism (in general, I realize the word has many connotations). Being skeptic simply means not accepting the truth of something by default, requiring some kind of evidence and some kind of legitimate logic linking that evidence to some conclusion before accepting the truth of the conclusion. I didn't go into the article with the assumption that the conclusion was wrong, I went into the article thinking, "I don't know if this is true." The arguments are simply not good arguments as far as I can tell, they don't hold up to scrutiny. I still have no idea if the conclusion is true, all I know is that the arguments I read don't lead me to believe that the conclusion is true.
That's the state of mind that lets people get roped in by groups like Scientology. Just reading something like this and then trying it for yourself should generally cause any "open minded" person to decide that there is something to it. If you had people read this and then play them any old thing in any old tuning telling them it in 432 I bet a majority of them would say they could tell how different it is.
Yeah, probably. But, if one is remaining as objective as possible, and notices something different, don't they still experience that difference?