So that ended quickly…I knew that “faith” stuff was just a load of crap. Everyone just dies. To be fair, Eren failed pretty hard too because he doesn’t have energy for the long fight, but what are you gonna do? Anyway, the Eoten made a point to swallow Eren whole, so she clearly has no intention of killing him.
It’s much more likely that whatever organization is running these human Eotens is trying to recruit Eren for their cause. Either that or they’re trying to study him because his Eoten transformation was uncharacteristic of normal ones somehow. Either way, we’ll have to see if she makes it out with Levi and Mikasa ready to face her.