It is, it referring to Saint 14 is unlikely but I'm not sure who else it could be referring to. Maybe Osiris but I'm not quite sure.
Could be a character we don't know about yet or it could be us. Or it could just be a general prophetic verse from mythology. Sometimes flavor text is just flavor text. There's way too little information to think it had to be Saint-14. That said, I hope you're right that'd be really cool. Just trying to keep some rationality and logic flowing in the lore section.