FTDK,
You have basically summed up my views before I read this thread. I think everyone is agreed that to fly the KMP NDB approach you don't need to track outbound on the NDB during the missed approach.
For me the issue now is how much do we read into diagrams like the Gold Coast one above where the missed approach track clearly showes a dead straight line from the aid when there is quite a significant heading change required. After some of the replies above I'm not sure what the answer is now.