If I could tick a box every time I spend money that said: “let the recipient know all of the history of where this money came from”, I’d avoid ticking it.
Using a blockchain that's designed to work this way, and then claiming to need tools capable of laundering money in order to avoid that outcome, doesn't strike me as a particularly good argument in favor of either of those things.
“It’s a good thing that the people that designed ________ are dead because they’d have a heart attack if they saw what I use it for!”