Fair point I suppose, I personally think (and this opinion I've heard from and now share with a GM form a M&M game I sadly didn't have a chance to be a part of due to people dropping.) is that one of the most important things to do before a M&M game is to get everyone together first, and have them explain in detail, what they want to play in regards to setting, theme and character... And to have everyone agree on something before anything.... And all that was just a clunky way of saying: Everyone needs to be on the same page and willing to go in the same direction, prior to anything else. Otherwise... well, never seen it myself but from what I've heard, it's not pretty. All that said, I see what you're saying with the difficulty and denseness, still I wish that there were more people willing and able to run it.