OK, this actually IS something perhaps women know better. If a woman plucks her eyebrows to shape them, the bulb end of the root under the skin comes out with the tweezer. Sometimes the hair never grows back after repeated plucking. That is because the root has been damaged and it dies. Thus there cannot be any hair growing from that root. The shaver that pushes the skin back and pulls at the hair before cutting it, can pluck at the hair, and works more like a straight razor/tweeezer combination, so it potentially can destroy the hair. As I said, this is how the specific shaver’s methodology was explained to my son by his rebbie in E”Y and then to me by my son.
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