Objectively, it is true that perhaps no rock or pop band was ever more exacting and selective about their studio musicians.
Steely Dan’s complex, multilayered compositions are an audiophile’s delight.
One name to utterly refute that tripe:
Frank Zappa
If you were less than perfect in studio or onstage, you were GONE. That fast. If dope was around, you were gone. A more exacting taskmaster I have never heard mentioned.