Somone needs a lesson in math. An average doesnt mean there are nunbers on each side. 30, 30, 30, 30 is still an average of 30 and there are no numbers on each side of it because the standard deviation is 0.
10, 20, 30, 30, 40, 50 is still an average of 30 and has numbers on each side of it. The whole point was depending on circumstances the later may be better for the offense than the former.
So yes the point about standard deviation was relevant given you clearly did not understand it. Imagine calling someone a Special Person and then making such a mathematically incorrect statement that even a Special Person would laugh at your ignorance.