As I understand this fine was for something done a while ago and now it’s being levied to give the impression the sec is not a political hack of the swamp. IOW what Robinhood did presently is being ignored because it’s what they were ordered to do by yellen and the hedge fund swamp.
Almost completely correct, the fine was levied about a month BEFORE Robinhood's criminal acts of the past few days.
But you are correct that the SEC fine was token, a coverup and distraction from insider market manipulation.