Because as by today, [2023-01-16 Mon] https://specviz.readthedocs.io/en/latest/
reads ``` Please note that this version of SpecViz is no longer being actively supported or maintained. The functionality of SpecViz is now available and being actively developed as part of Jdaviz. ``` maybe the ITP no longer is under active preparation. If this were the case, retraction (or filing an ITP then in favor of Jdaviz) may update the list of WNPP. Regards, -- Norwid
