Why does Raudowl need Elfire before you can Skill Inherit it?

Someone else noticed this before. I don't know if there is any reason for this at all.
Maybe try sending IS a inquiry. If they get enough, they may respond.

raudrowl came out first before blarr and gronn owl and it was probably only coded to branch from elfire and they probably forgot to branch it out from ruin because its an easily forgettable skill

the light and elight tomes came out waaaay after the blarrowl tomes came out so they probably remembered to code it to branch into all the other tomes