Can anyone explain the value of a magnetic mount when the power cable has to be screwed down? It's not like you need to be able to quickly detach and move the c

Can anyone explain the value of a magnetic mount when the power cable has to be screwed down? It's not like you need to be able to quickly detach and move the camera, and it could still look nice and sufficiently "Nest-y" with a mechanical base. Am I missing something?