It was the first cleansweep by either side since 2014.
Sir David described the prospect of the series being revived in Bendigo as "looking quite likely" but decisions will be made at the SSNZ national committee meeting in Christchurch on August 15-16.
The committee will also then decide the processes for selecting the New Zealand team for the 2023 World championships at the Royal Highland Show in Scotland next June.
If the decision is made to go to Bendigo, the meeting will have to decide the team composition, with the usual selection process having been also disrupted by the pandemic, which resulted in dozens of competition cancellations, including the 2021 New Zealand Merino championships in Alexandra and the Golden Shears in 2021 and 2022.
The machine shearing team has traditionally comprised the winners of the Golden Shears Open, the National Shearing Circuit and the New Zealand Merino Championship.
For the woolhandlers, green light was given to the winners of the North Island circuit and the New Zealand Merino Championship; while the bladershearing winners at the Waimate Spring Shears and the Canterbury show's Golden Blades were selected.
The annual transtasman series began in the 1974-1975 season, alternating between a new Golden Shears of Australia at Euroa, Victoria, and the Golden Shears in Masterton, with two tests each season until 1984, when the competition was suspended because of a boycott by the Australian Workers Union.
It was revived at Perth in 1997, and ever since the Australian legs have been held mainly in conjunction with the Australian championships and hosted in rotation by the states of Australia.
Woolhandling tests were added in 1998 and bladeshearing tests, with New Zealand-leg matches in Christchurch or Waimate, were added in 2010.