My opinion is this.
I have been fishing with c'pins for barbel for nearly 50 years, and with braid only for the last (at a guess) 20 years. Although Ray and I discussed braids, I preferred PowerPro 20lb over Spiderwire - don't know why it was just a "feel" thing.
I use a 12" hooklength of Sufix coated braid, and can say that I have never ever damaged a barbel or chub.
Damaged fingers once or twice but that was pulling against a snag without using (stupidly) a metal rod or whatever.
I only fish using a max 2oz lead and whether off the side or Wallis, never had a problem.
I have the odd (mainly social) carp session, and hating baitrunners and Buzzers I opt for c'pins (the club water does allow braid mainlines) I cast up to 40-50 yards using Wallis.
The only time there is ever a slight issue is when it's raining and hands are wet, line does not slip so easily over hands.
I don't think braid is bad, but everyone has an opinion, so be it.