I'm guessing they are questioning the motives of the author like...

I'm guessing they are questioning the motives of the author like they did with previous research papers and claim that China is warehousing mountains of Dy because they have no further use for any of it and the only reason they do it is to prop up the price?
Of course they have this on very good authority from some expert on rare earths who they happened to have a few drinks with at the local watering hole. LOL


The truth is they cornered themselves long ago so now their only choices are to continue downramping which only makes them look silly or admit they wasted 5+ years and hundreds of hours writing many thousands of negative posts which turned out to be mostly wrong and prove that they are.
Since they have no credibility themselves they will attack the credibility of anyone writing any positive research on NTU in the hope that if they throw enough mud some of it will stick. Although they remain in denial I bet the photos of the completed plant must have gave them a really good dose of reality. I'm only surprised that to date they haven't claimed the photos of the plant to be fakes because the photographer was paid by NTU .