In a way, the whole CLone Wars exist to create a huge kill zone for Jedi, Ruin Explorer? Might work.
But it seems the whole spiel was also about giving his rule more legitimacy then just "I have more troops". Having this legitimacy stifles his opposition from mounting a resistance. The "people" chose him as their leader, so even if he's a terrible being and turns everything to sh*t, doesn't he belong there? Even if I think he needs to go, can I convince my peers of that?
And we know that resistance against his rule - even if he controls the military - is possible, it happens in the OT! But if might have started sooner if he had appeared as conqueror.
Of course, all that rationalization isn't really presented on screen...y th