All raw and semi-cooked chicken is cut on the wooden board with different knives than fully cooked chicken, which is cut on the plastic board with a different knife.
I also suspect that his chicken is probably much nicer to handle than most of the birds available in North American grocery stores. Until a few years ago, all I knew were the slimy, mushy, soggy wet-chilled, pre-brined from Big Corn/Soy and the USDA. They're totally gross. Unpleasant to touch, look at, and even smell, much of the time. Now I'm buying air chilled heritage breed birds that have been minimally processed/handled (and are twice as old when they die, though that's another matter). Those are a joy to touch, behold, and even smell (well, that last one is kind of an exaggeration, but sometimes....). But I'll start another thread here in a bit on yakitori so we don't get too far afield in this thread.