researching Feng Shui has me convinced someone just wanted to justify their BS job

Feng shui is just "mystical interior decorator".

Feng Shui just seems like vibe decorating to me.

A weak person blames others for their all of failures.

A strong person blames themselves.

An enlightened one blames the furniture.

Most of what I've seen of it is a lot of sensible design rules wrapped in esoteric vocabulary.
Or not! Fengshui dude has been fixing bad rooms for years and is quite clear in his explanations.

I more got the vibe that they were just tired of arguing about why they wanted to keep the bed where it was. After enough arguments, they just said "it needs to be here or you will die... cuz of... reasons...".

Style is subjective, to each their own. There are a bunch of different methods people have come up with. This one seems popular as of recent