sure go buy a fancy designed tshirt of ir blinding led glasses but regular sunglasses and a common facemask work way better and infinitely more common.
Wearing special anti-surveillance clothing because you want to make sure cameras can't identify you is the real life equivalent to installing ten privacy browser extensions because you want to make sure websites can't track you.
I think they are suggesting that having a large number specialised browser extensions actually increase the uniqueness of your browser fingerprint and thus make you stand out more. Similarly, wearing a specialised anti-id tech or material, they are suggesting, draws more attention to you?