Australia on the Map - Why did it take over 200 years from the time of that first visit before a more or less complete map of our continent was published?

Why did it take over 200 years from the time of that first visit before a more or less complete map of our continent was published?

The mapping and unveiling of Australia’s coastline and the continent itself has a rich and complex history that began with the visit of the Duyfken in 1606. But no one great expedition charted Australia, it was revealed little by little in 51 episodes where mariners mapped portions of the coast until virtually complete maps were produced in 1811 (French) and 1814 (English).