That article might've been better if it had been written by someone who has actually heard Steely Dan's music, but then again that might not be "what Tyler Durdern would do" (and lord knows there are some cases where I'd take a "filthy hippie" over a Fight Club fan, and that's saying something).
I think it's obvious the letter was kind of an irreverant goof, and Becker and Fagen (and Fagen's interpreter, if Yacht Rock lore is to be believed) aren't sitting around outraged at Owen Wilson. Luke, on the other hand, is far more deserving of ire.