Turns out this was a much bigger affair then previously let on.
first of all if they are using mixers then a blockchain analyzer has no way of knowing where the coins are really going to. so they can not really make the conclusion that they are selling on the market and crashing the price. for all we know they are converting it to monero...
That's not exactly true... There's way of tracing coins other than through following their addresses. Sometimes outputs have similar characteristics such as size, timestamp when moved, and their eventual destination. If 5,000 coins are all put into ChipMixer at the same time and 5,000 coins end up moving all to the same final address however many weeks later, its safe to say those belong to the same owner.
Regardless, Chainalysis didn't actually use the word "Chipmixer," they focused more on Wasabi wallet, and this image demonstrates just how futile their efforts were:
