In the code "Far Eerie Woods" is referred to as "grove" so I would assume that at some point in development the name was changed. The scripts do not use the name of the area to generate the travel buttons, and the inconsistency wasn't noticed until a couple years ago so it wasn't included in any bugfixes. Hopefully I'll eventually get around to a new version of bugfixes to remedy that.
While "grove" and "woods" are similar enough that native English speakers would likely overlook the difference, the developer is not a native English speaker, though he speaks English quite well.