To be fair to Josefa, I don't think she's saying anything against this specific electrologist's skill or the effectiveness of galvanic. She's probably referring only to the extreme claims on that website that state categorically *all* thermolysis treatments on coarse hair cannot work/are ineffective/are damaging. This is a demonstrably false assertion, because Josefa treats those kinds of cases with thermolysis all the time successfully.
It's kind of like the scientific method, opinion is valid until one is definitively proven incorrect.
I've seen the recommendations for hairzapper on hairtell *as an electrologist*, but that doesn't mean anyone endorsed those opinions about thermolysis in the same breath.
I've had galvanic and blend on my upper-lip, which is one of the only areas of my body that I had successful treatment in, yet my electrologist had faulty notions about hair growth (unbeknownst to me at the time) so she requested I shave and she tackle the hairs in the growing phase. That doesn't mean her treatment wasn't really good, because it was.