No. This is false, it does not depend on the officer.
Condition 51 is not handed out at the discretion of the officer, it no longer applies. PERIOD
You may have misunderstood what she was explaining in the height of your emotions.
Even if by accident it was printed on your landing documents, the condition no longer exists/does not apply anymore.
Even if you landed BEFORE the announcement was made and was given Condition 51 it doesn't matter...it will no longer apply.
Any email has yet for you
I believe their systems might not be fully updated to stop printing the condition on the landing document, as another member noted...it took their officer 4 tries before it printed sans condition note.
What still exists is the Sponsors 3 year obligation to the Applicant.