I can only stress the words that are there, obviously. When regulatory projects are put together, of course, the policy is written up by the department, and it's run by a special branch in the Department of Justice that advises on whether it's properly authorized under the act. They have to be intra vires within the authority of act--all the tests that are met in the Statutory Instruments Act.
So of course, in principle you're absolutely right, the reason it's put in is that a regulation could qualify these previous subjects. But no regulation, to the best of my knowledge, has been proposed, and I can't comment on any specifics. But in principle, that's the reason it's there, yes.