The issue here is that the GUI would need to be totally foolproof and needs to cover each and every possible permutation of the system it is supposed to configure.
If you offer a GUI setting, it actually needs to be able to solve every related problem in GUI, so that if you mess up, you don't have to go into CLI again.
Tbh, I am not sure super advanced settings would work well in GUI. Even in Windows there is a certain level of advancednes of settings, which require you to use regedit or powershell.