Thinking of adding that scene in ep2 with Dooku talking with the separatists in Geonosis and the short clip with that Muun as a Palatine flash back scene of Plagueis telling/teaching him about manipulation.
Part of what makes that scene work is that you never see Plagueis. It would ruin the mystery to have a clear shot of him like that, not to mention he would look silly. Besides, it’s totally pointless.