It's interesting to compare the amount of turn with the other two reverse heel turns, the double reverse spin and the open telemark. The closed telemark has an amount of turn for the man on the first step intermediate between the two. If I had to guess, this would be because the man does not want to underturn the rotation in the kind of way that suggests he's about to set up for promenade, but he also doesn't want to really crank it in the sort of way that would suggests he's going to continue and send the lady into a DRS.
As far as I can tell the closed telemark is always followed by an outside partner step, in waltz, foxtrot, and quickstep. Or can anyone find a counterexample?