I think the idea is the skaters are NHK skate a SP and A FS and the scores are totaled and ranked against each other.
Then the skaters from TEB skate only a FS and the scores are added to the SP scores from TEB then they are ranked against the other skaters from TEB. Two sets of medals are then giving out to the two separate lists. Think of it like the same judges judging a novice and then junior event.
this is pretty much my idea. just has to happen in only ONE of the remaining GPs, though.