SEC is always late to the party... no clue why
It's partly because of the way the Enforcement Division is structured. First, an attorney has to take an interest in a specific company, or his superior has to get a referral from somewhere--often FINRA--and assign an attorney to follow up on it. Then the attorney spends a week or so doing his own research, and makes a recommendation to his regional director. The regional director takes a look--not necessarily immediately, since he has other duties as well--and, if he doesn't like what he sees, agrees that a suspension would be appropriate.
Then the matter goes to D.C., where the Commission will make the final determination. From what I've seen, all that takes about three weeks...