(I'll count myself as an expert in as well).
To be honest, I don't mind the text in the blank event sheet at first, since from the moment you add an event to it, it disappears and is not to be seen again.
It is like a graffiti in the empty event sheet, and even adding a comment makes it go away.
As for the tooltip/field helpers, they are freaking helpful and preventing from having to go dive in the manual for a quick refresher when needed.
Especially for the kind of objects you don't use everyday, or come back to later in your development.
Sure for common actions/conditions they are "useless" after a while, but honestly it is easy to focus on the field(s) and not even pay attention to the small line on top of it.
I think the suggestion of having them grayed is actually giving them more focus on top of making them harder to read if you want/need to, which in the end defeats both purposes.