When you oathsworn a person Then they afk.

HI GUYS IM A god. Thats why my summoners name is Kalista God. I have to seriously say that when you oathsworn a person, and later they might go afk. and your ult is just useless crap and you cant oathsworn another person even if you buy another ... Wow rito pls think.. What do you guys think? :)