Is this something you have tested for yourself and proven to be correct, or have you just read it as a fact, because that is what pro calibrators say the director intended it to be like ?You must have a dodgy one then as sharpness should be 0.
Some people don't actually like calibrated settings, as it tends to wash the colours out and removes some detail from the picture too.
I have sharpness set to 18 on my JS9000 because when set to 0 the picture is nowhere near as clear.