LOL ... never heard anyone on POTN say a lens is "too sharp" before .... ever .
You can fix "too sharp" in post if that ever comes up in a portrait, but you simply can not go the other way.
I have, multiple times in reference to macro lenses. That and too sterile/medical.
I'm with you though. Sharper is better. You can make an image less sharp, but "sharpening" only can get you a little.