I don't know if I can imagine a peanut without half stops. To me it's part of the charater. But I will admit that I'm glad for safety sake they're there. To me it adds a bit of safety and time to make sure all my fingers and parts of, are out of the way. Would it snap closed so well if it was a cam tang?
But I do like having the half stops there if no other reason than to have a mini break during the day to admire a nice looking pocket knife. A moments pause in the daily routine for the mind and eye. Taking a moment extra to handle a peanut safely is no loss, and a small gain in the scheme of things. Heck, maybe that's why they are there!
On the other hand, my smallest knife I use is my keyring Vic classic, and I've yet to cut myself handling or closing it. It's way smaller than the peanut, but it is no problem to handle. Why, I don't know. It has easy spring pressure, and closes as easy as it opens, yet seems to be good enough.
I can only chalk it up to the mystique of the peanut.