I stil miss Defrosted. It was a good chance to get to know the contestants, and skaters in a more relaxed setting, and I liked it when Robin got to explain some of the moves with that thing where you got to draw on the tv screen.
I think the problem was that Defrosted had an older audience than the typical ITV2 one, and for some reason, despite perfectly good ratings, and DOI being its biggest show at this time of year, they couldn't let it slide.
The main show would definitely benefit from some kind of spin-off show. A once a week effort on a Friday afternoon would do, and it wouldn't be compulsory to watch, so anyone who thinks it isn't necessary could just not watch.