"Anyone esle" is not super. They are beings like we are. And we know that we need breaks and don't want to / cannot work on top level all the time. So we accept it as normal and don't expect more.
It's the nature of being "super" that brings the problems.
This guy can do "everything" in comparism to us. So we expect everything ... or at least: Why doesn't it do it for me / us / our community when he did it for other?
The things we expect them to do are vital in most cases. When a crime, a catastrophy, an accident happens we cannot say "Okay, fix it tomorrow!" ... it need tzo be done the very moment.
And these guys are RARE. When your preferred writer doesn't deliver a second or third book in a year - you'll discover another one. When the painter next door has no time to do your walls now - you call someone else.