I thought the Tolkien family was famously aggressive about enforcing JRR's copyrights.
I am surprised that Palantir Technologies hasn't received a C&D from the Estate; though perhaps the copyrights don't extend that far? Is that a risk for this project?
Regardless, this sounds like software that could be very useful for some of the work I'm involved in. Exciting to see the positive review here. Will have to check it out.