Not so sure Faulker would agree with the idea of the "simple story". There's really no such thing as guidelines when it comes to good writing.
Of course there were many examples that go against the grain. These are just basic rules for writers. If someone can write a successful story with simple characters and cliques while on their soap box, then all power to them, but it's highly unlikely they'll ever get published.
It depends. Are we talking popular fiction or are we talking literature? If it's pop fiction, sure, you probably want to think in a more narrow, preconceived, structured and time-tested way. But if someone aspires for something more, and is great at it, then rules need to go out the window because they'll just clog up any and all creative pathways.
If someone is brilliant enough, they'll get their work published. It might not net them a mansion or movie rights, but it'll get published.