The advantage of shooting with editing in mind is that it allows for more control over the final edit.
Multiple takes, different shot setups, and different lighting allows for more options in the edit, as well as being able to be more selective with cuts and shots that might not be optimal to the narrative, or style of the film.
It also allows for control over how time is depicted in the final, and rather than filming long shots, filming shots to be edited together maintains a chronology without unnecessary filming.