Prime Minister Evan, who had governed the New South Wales Colony for over a decade, certainly had a stronger perspective on issues than Henris, who had previously served as an ordinary city council officer.
Similar to Arthur's thoughts, Australia's current development focus remains on industrialization and other infrastructure within its native land.
Now incorporating New Guinea into Australia would only add burden and not bring much practical benefits.
Maintaining the New Guinea colony is a more cost-effective approach for Australia, which allows them to continue oppressing New Guinea and using nearly 700,000 indigenous people as free labor while focusing on the development of Australia's native land.
However, being a monarch, Arthur couldn't directly discourage the enthusiasm of his subordinates. Therefore, it was necessary for another officer to present Arthur's perspective, or a more correct perspective, and Arthur just needed to agree.