I think energy and urgency are separable, if often related, just because I’ve seen a thing — mostly at cons — where GMs mistake a lack of one for the lack of the other and try to force the gap with a bad tool.

Like a table where the players are engaged in what is happening, but are on a different pace than the GM wants them to be, and so the GM blows shit up to try and make them go faster/be more excited. Which sometimes works, but often just pisses the players off. Or a table where no decision actually matters, but the GM tries to get you all to make them really fast and jumps around and makes everyone roll lots of dice as though the commotion is going to replace the substance.

I tend to think of it, in the negative at least, as times when enthusiasm is lacking vs. times where meaning is lacking. And while you can sometimes bridge those, and one does often lead to the other, you can’t make meaning by trying to pump more enthusiasm.