What is weird is how the force awakened at more or less the same time (presumably) on the same planet in two different folks. In the original trailer Snoke says the force has awakened, both the light and the dark.
It's possible that Finn is the light side awakening and Rey is the dark side. The way the poster is drawn would give credence to it too.
Edit: did force church folks conjure up the force on Jakku resulting in this awakening?

Maybe that's what Luke found out at the first temple: that people did rituals to make the force manifest itself in people once, causing the sith/jedi split. It would always manifest itself in a balanced way.