Talk:Randolph and Ravenna/@comment-34650365-20180227222611/@comment-26140304-20180227223653

That's basically the reason. You see this for Fei & Fang, Bjorn and Linlin, etc. People may argue Ark being male because of Ilia being there, but the naming mainly suggests that it's focusing around Ark himself. Other cases are different due to the fact that both units are being focused on from the developers' perspective.