From the tables in the article, it looks to me that the existing(?) ztd.text already solves all issues he mentions (at least the ztd.text column has checkmarks

From the tables in the article, it looks to me that the existing(?) ztd.text already solves all issues he mentions (at least the ztd.text column has checkmarks everywhere). I have not understood why there is a need for this new ztd.cuneicode ? But I have only skimmed the article so maybe I missed something