Yeah, I was thinking that though the association is strong for me. Still, I can't help but wonder why someone would use it if they knew the association anyway, even if it wasn't strong. It's not that unknown of a play and since it's a rather unusual name the girl is bound to find the connection sometime in her life and wonder if her parents knew. You're more likely to meet people who know the story of Oedipus than say Lysistrata, another Greek play/character you wouldn't want to name your daughter after. But to each their own.