Opinion: boring is the flex
The richest people in fashion decided being interesting is beneath them. Quiet luxury was never about taste. It's a status move: blandness as proof you don't need anyone's attention. No logos, no colour, no risk, because risk is for people with something to prove. And everyone copied it downward, which is how the most expensive wardrobes in the world ended up looking like a uniform for not being noticed. The loudest thing you can wear now is a point of view.