We do not know that. All we know is that a Binance employee knew about a $600 transaction, and made a general statement about the behavior of groups like this. We know nothing beyond that.
Said employee being the then chief compliance officer.
Your broad point is correct: Binance is not being dinged by the CFTC for money laundering or terrorist financing. But the allegations they hung out are far from trivial. (The core charge is also nontrivial, but for technical reasons.)