It's an administrative drafting convention that the government has introduced because it made a mistake in the drafting of this bill. It introduced a schedule 2, in the draft given to the committee in advance, as a draft amendment—one of the minister's eight after his appearance—and it has now introduced it formally through the clause-by-clause process.
It's very clear to most people that the drafting convention is you can't have a schedule 2 if there is no schedule 1. It just doesn't make sense. Therefore, the government drew the link by introducing this. That allows it to be relevant in the discussion, because I don't believe you can have the other amendment without this amendment.