As an editor it is incredibly frustrating the amount of dual system audio I have to deal with. Even when the camera is on a tripod recording an interview with a single microphone, a time when running the microphone into the camera is exceedingly easy to do, its not. This means extra work in post, syncing the footage. The argument is that the recording capabilities of the digital cameras is no good enough, which is a total load of garbage. If there is any loss of quality and the video below proves there is not, any loss is very very small and unless you are making a feature thats going to be played in a theatre with exceptionally good sound dual system these days is a ridiculous waste of time and energy.
Dont believe me, watch the video below.