I'm not a fan of crypto$, but it is out of the control of the State. I can imagine a campaign to delegitimize crypto$ by raw association with the underworld.
Crypto seems to be doing a fine job of that on it's own, by ACTUAL association with the underworld/fruadsters/exit scammers.
and investment banks, but to be fair they are probably also included in the groups you mentioned.
This is basically an "I don't know why anybody's surprised" reply. The point is popularizing the connection, not establishing it, which as you point out already exists.