She is wrong in that, as the pros here say all of the time, with good vision equipment and skill those vellus hairs can be treated successfully.
_________________________
Treatment details: genetic male heavy facial/body hair no hrt, type III skin
Pro Electro: 110.00 hours Apilus Platinum picoflash + synchro
DIY/Co-DIY Electro: 617.50/55.25 hours Apilus SM-500 microflash + blend