Yes, it's great that we develop a tool to generate all possible combination of affected options smartly.
It would be difficult to cover them all due to things like mutually exclusive "choice" and dependencies. But if we could generate a tool that generated all possible configurations (assuming for a single board), then that could be very valuable.
Like Nanthan suggestion, we can create a special config to enable all non-execlusive options, actually kconfig support --allyesconfig to simplify this task.
I am not sure if that is useful or not. Certainly not for bool settings whose default is already "yes