It's kind of funny, I guess.
But I didn't assume it was a farce. I was genuinely excited to see the implementation, because there is something unique about the transparency and interaction you can have with an excel workbook. It's almost like a GUI for a lisp REPL. Even if I am too dumb to understand the actual c code, I can see the relevant numbers being crunched, how they relate, and more.
So... "good one. you got me."
But even as I sit here as the butt of the joke, I find myself wishing your link had been sincere.