[username90]

Note that they meant that they have a new algorithm for their game and not a new algorithm for the world, so don't shit on them for no reason. For all we know they could have already read the papers you mentioned. They even mentioned that this was an old technique in the blog:

> Pathfinding is an old problem, and so there are many techniques for improving pathfinding. Some of these techniques fall into the category of hierarchical pathfinding