Sorry Ses, not offended at all, this is a light hearted group over here and we rib each other a lot (pun intended). I always forget to use the emoticons .
To answer your question without being a smart ass, yes, that is probably the biggest benefit of using ceramic cookers and the KK is the best ceramic cooker out there (in my opinion) and therefore has the best moisture retention properties I have found in any cooker. Everything I have cooked comes out VERY moist. Even when heat may get away from you, its very difficult to ruin a piece of meat.
mguerra has stated the scientific reason why very well.