Reading that article, it appears that one large part of the teacher's problem came from that fact that she did not mention what she had. As you will see above, I recommended doing so. Teachers are in a peculiar position compared with the rest of society - because they have responsibility for and are an example for children, they are expected to be morally whiter than white, so small faults that would pass in the population at large are magnified. Also, that teacher claimed that her infringements had been wrongly listed, which can't have helped.
However, it is true that, for the purpose of citizenship (and for PR), the NZ authorities do consider a pattern of repeated infringements, as it says in the Guide you quoted, as a considerable drawback.