Nobody knows who Satoshi was, everybody just assumes he isn't the feds themselves. Such scenario would be so catastrophic to organizations that rely on its advertised anonymity and it would be the best investment ever since you could just keep denying you have this capability, always coming up with a cover story (keys in cloud, we traced their keys, they were dumb etc).
This would keep criminals guessing, the economic value of laundering with crypto is too great to give it up but at the end of the day, they can only operate under uncertainty.