Paragraph 205 of the supplementary explanatory memorandum, if we have the same iteration of the document, reads:

This provision is not retrospective as it does not have the provisions of the amended Bill apply prior to the day after the Royal Assent. However, it does capture conduct that commenced before, on or after the commencement of the amended Bill.

That reflects, Senator Leyonhjelm, what you have yourself acknowledged to be a very narrow operation of this particular provision.