The thing that's really disturbing is not how far Cambridge Analytica actually got in terms of influencing American voters through the "campaigns" they were hired to perform. In the end it was hard to assess how much damage they did.

But that's not the real problem here.

The problem is that it has been demonstrated how ad-tech infrastructure can be re-purposed for political propaganda, disinformation, and misinformation. All of that power is now available to the highest bidder, and the infrastructure providers, as we are now know are utterly amoral, stronger and faster than any government regulations, beholden to their shareholders and nothing else even if the world burns.

   > Now there may be other potential issues that would elevate the matter, if disinformation is used...

Disinformation was used and it is NOT a "potential issue" that merely "elevates" the matter, it's profound offense that requires a harsh and comprehensive response.