Why are these guys throwing money after what appears to be the Juicero of geospatial indexing schemes? As others have pointed out, their word list is huge, mult

Why are these guys throwing money after what appears to be the Juicero of geospatial indexing schemes? As others have pointed out, their word list is huge, multiple stems are included, there's no hierarchical relationship between words and so on. The whole thing seems like a bad design interview question where you start by explaining S2 to the candidate.