Everytime when I see post like that instantly I'm seeing UE4 blueprints in my head. There is really no point to compare epic to scirra (hundreds of hands vs only few couples) but they have nice system with object blueprints and level blueprints working together.
So maybe this is a thing worth do some tests. Not only to make events more clear - you could have object events on objects only and everything else on level events, but maybe level events could work on 1 cpu and objects on another etc.
And on the other side this kind of system have more sense, at least from my point of view. Even for beginners who tends to make one huge and messy event sheet with everything on it. "Double click on sprite to add some logic to it" feels more natural and most engines are using similar approach. You don't make just one text file full of code for entire game to compile.
But I'm just a user, so I'm just saying what I see xD