He could, if he used the debugger, but it's tedious to step through all those variables. God thought he eliminated evil in one of the earlier revs. He likes to think so, but he is often amazed to find out what goes on in the overnite job. If a critical error occurs, the system pages him automatically and he logs on from home to try to bring it up.
Otherwise things can wait until tomorrow.
On the seventh day he went home and found out his girlfriend had left him. That was the development phase of the project, now we are in the maintenance phase. A lot of people are drawing things on the white board, but personally, God doubts that it will ever be implemented. Satan is an MIS director who takes credit for more powers than he actually possesses, so people who aren't programmers are scared of him. God thinks of him as irritating but irrelevant.