A lot of issues have been reported with little to no response, plug there's been a vast lack of updates despite many of these issues being quite problematic.
It's fine if the project is abandoned, but please give some form of confirmation if it is?

its not abandoned

This mod is undergoing a large-scale rewrite for modern versions (1.20+) and will be repackaged into an all-in-one MCD content mod with Dungeons Mobs. I am also currently the only maintainer for this version, and I haven't had time to address any of the issues plaguing the 1.19.2 version of this mod and the ones related to it (Libraries, Mobs).