I admit my style had many things I would not try IRL. But they gave knowledge about how to manipulate a human body/mind.Unfortunately this is subjective. No one will ever admit their own style has flowery BS fluff in it. But they can point out in a heartbeat all the stuff in every other style.
I would simplify the “BS” to use (or make useful) in sparring and integrate with everything else. We can learn a lot from fancy stuff.
What happens in many scenarios is we don’t know what is for learning and what is for performance (or how to connect both).
How much BS we get at university? Or in any other training. Then it is up to us to make something of this; and fill the blanks.