Those mods were made for official servers, and events and such. They have relativly advanced gamerule settings, and it much more convient for the population at large, since these mods are played often.
On the other hand, this mod is likely not to be played very often. It probably will never be played again after ~2 weeks. Also, its pretty simple, just to set the gamerules yourself.
Imo, this isn't even much of a mod. Its not necessary even if people played it.