I don't understand. Ref: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=634757. This project was put up for adoption, and many people replied showing interest (even some creating PPA's) but ownership was never transferred and it is still listed for adoption.
That bug should probably be closed, because the person who published the PPA uploaded a version to Debian just a month later [1]. From the package's tracker page [2], you can see that the same person became a co-maintainer, and has been preparing most of the uploads ever since.
[1] https://tracker.debian.org/news/180171
[2] https://tracker.debian.org/pkg/lyx