The amount of criminal usage of cryptocurrencies is definitely often overstated, but I don't think that article says anything that actually contradicts the statement (which, again, I think is false!) that crime is the only sector thriving in crypto right now. The article says "criminals use more cash than cryptocurrency for money laundering"- this doesn't tell you how much cryptocurrency use is related to crime, though.

They say up to 2 trillion could be getting laundered annually- at that point, Bitcoin's entire 2019 transaction volume could be money laundering, and it would be no less true that "criminals prefer fiat over cryptocurrency for money laundering." Obviously, this is absurd- the point is the article doesn't tell you what you actually want to know (how prevalent is money laundering in cryptocurrencies compared to legitimate transactions in same?)