I remember in A16 I do not know if it was because of Vanilla or the mod that I played but the subject of the biomes seemed a very intelligent design.Each Biome had large quantities of a fundamental resource, in the snow you found nitrate, in the prairies you found lead, in the forest you found iron, in the burnt forest you found coal and in addition to the fertilizer, in the desert you found oil.
In any case, you needed a biome to supply a need.
The variety of biomes made it more difficult to find the biome you were looking for at that time and enriched the search.
For me, the importance of the biome variety was never a visual question.
It was a strategic question of resource management, and it would not have to be only of mineral resources.