What's perhaps a bit weirder is that the SEC is allowed to settle, instead of having to go through the judicial system.
What they do reminds me way too much of https://digitalcommons.law.yale.edu/fss_papers/543/
Settling has nothing to do with a finding of truth.
On the same token, it's doubtful that the SEC would proceed to charge Robinhood if they knew they couldn't make the case stick in court.