I agree Angel.
I don't mind at all that he isn't the top dog, but having him kneel really disempowers him for me. The last thing I want to see is more of it.
As for whether that sort of scene could be achieved. Yes, it can be done. But can it be done well? And why would Palpatine need coronating? He's been in that position for what, 15 years? More? All he does is retitle himself and order a change of stationery.