The instrument amends Migration (IMMI 18/076: Arrangements for Other Family Visa Applications and New Zealand (Family Relationship) Visa Applications) Instrument 2018 (F2018L00772) (IMMI 18/076) and Migration (IMMI 18/089: Arrangements for Other Visas) Instrument 2018 (F2018L00940) (IMMI 18/089) in accordance with subsection 33(3) of the Acts Interpretation Act 1901.
That subsection provides that a power to make a legislative instrument includes a power to amend or repeal that instrument in the same manner, and subject to the same conditions, as the power to make the instrument. This means that subregulation 2.07(5) of the Regulations also include a power to amend or repeal an instrument made under that provision.
Source: LIN22059.pdf and LIN22059-Explanatory-Statement.pdf