Not to calm down anybodys’ grievance, but to understand better you might want to look up
- https://forum.dxo.com/t/edge-effect-of-selective-tone-black-slider/25580/4
- Understanding Selective Tone control - #18 by sankos
which shows / explains that
“None of the Selective Tone tool sliders alters the black and the white point values. This is unlike in Lightroom, where [-100 Highlights] changes the white point L(a b) value to 96.4%. …”
Personally, I use the Tone curve to set black & white point or if necessary to reduce pure white from 255 to 253, what most probably no one will notice. Of course one cannot recover completely overblown highlights, but might bring down the affected channel.