do you really think nesa cares about the wellbeing of the students??? think again, little pal.
also discursives are literally a part of the syllabus so just because the school didn't teach it doesn't mean that you are not supposed to know it - like my school literally did not go through what a reflection was, and there was no reflection in the trial that we did, hwoever, it is still a mandatory part of the coruse , so when I did my external hsc, I had to seek out advice from my friends in other schools and literally cram study as to what a reflection is.
i'd say that there is >90% chance that they specify discursive this year