Now christian lords will become feudal

Yes it switches vassals to, and ill add feudalism for christian rulers today, as i realized that

does the mod can switch goverment types of vassals？

Now enjoy 867 Scandinavia, Russia, Poland etc turning into clan.

I think the reason it defaults to feudal is because stuff in the game mostly starts design with Western Europe in mind and historically most of those tribes ended up becoming feudal rather than clan. Maybe having independent Christian Tribal Rulers become clan would better reflect that ?