It's not hard to make a pose that corrects overlapping splines, then do the cylinder map. That's how I did my Al Capone head which has many overlapping parts.
Because I didn't want to devote a lot of map to the top and back of the head, I made one pose for the face and sides of the head and another for top and back of the head. I hid the top/back and stamped most of the cyl wrap on the face pose, then I hid the face/sides and stamped a little part of the map on the top/back pose.
That got me this UV layout on the model which i can paint in 3Dpaint or in Photoshop and never have to convert to an OBJ.
(the map shown is the hair density map)
It's not "automatic" or instant, but in the time you spend trying to make 3Dcoat work you could do this and be done already.