You're all right. It isn't specific to any one event but it was picked in the very begining to allude to the seperation from the true heaven, the fall of Bhall and the story of Decius (though thats entirely metaphorical).
It was also selected to get the theme of the mod across to people just from the name. So that it would imply that it was a fantasy mod, that reeligion played a major part, and that it wasn't tied to any known fantasy franchise.
Lastly I personally don't like mods named after their creator, so KaelMod was never a possibility (I dont think they sound professional and people are less likely to try them because of it). Id come to appreciate that decision more later on when so many other talented people got involved and it really become our project instead of just my work.