Although the deal is profitable for Australasia, the French have ulterior motives behind it.
Although the Kiergaran Archipelago is located in the southern part of the Indian Ocean, it is still in the Indian Ocean.
If Australasia gains this region, it will not only be closer to South Africa but also expand its influence in the Indian Ocean Region.
For the British Empire, which regards the Indian Ocean and India as off-limits, the question is whether they can accept it.
In other words, France's actions are suspected of provoking a rift between Australasia and the United Kingdom.
As for why France provokes a rift between Australasia and the United Kingdom, the reason is quite simple.
The Four Great Powers of the Allies seem to be united, but they are only focused on dealing with Germany. For now, Germany has already shown signs of decline, making the division of post-war interests an important issue as well. At least, some advance planning is needed.