DSG - idling in gear is not ideal?

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Putting the DSG into neutral will also disengage any Hill Hold function as it only works with the transmission selector in S, D, or R. You then have to have the handbrake on, and when you put the transmission in drive, you will have to "pump" the brake pedal to re-engage Hill Hold.

My Hill Hold works with the car in neutral, I do it all the time. But I'm guessing that if I leave it in D, then clutches will be disengaged, so no problem leaving it there (as opposed to manually putting it in neutral -which is really the same thing i.e clutches disengaged)?