OP, no offense, but you should stop reading third-rate news portals that produce clickbait headlines, and their whole story boils down to mere speculation involving some kind of blockchain-spying company. Does it even matter through which mixer those funds went through (if they did at all), and who says they didn't use some other mixer as well?
Some of this news are mere speculation and guesswork because the process of investigation is not clear or revealed. It could also be a smear campaign against a mixer just to give them a bad name and grab some portion of their market. The truth is no mixer is a saint because none of them will enquire where their client got the funds they want to mix. The government can sanction any mixer because they all offer the same service. We can only predict the mixer that the government will seize but we have to be patient to actually know the next.