The moment agencies figure out that there is a new mixer in town, they are trying their best to get it to shut down. In other words, agencies of all sorts have been after ChipMixer and other mixers for a long time now. The weakest ones have been taken out unfortunately, where the strongest ones will gain more dominance and thus have more financial resources to not fall victim to governmental raids.
The long term problem I see is that with more advanced tools to their disposal, agencies will be getting better at what they do. They are catching up real fast, while most people here believe governments are still ignorant and don't understand Bitcoin. They just play stupid. They know what's going on.