User blog comment:Woest/Chapter 382: Alegria/@comment-121.54.44.89-20140428152822/@comment-7418318-20140428170958

I don't get your first point.

Franmlath was gathering a slave (or rather a mass of magic power, that just happened to have a soul attached), not a new recruit for the guild. And as you said, Hades was killed by the strongest known mage of all history. That it took a full team of Fairy Tail Mages and Zeref himself to kill Hades shows how incredible Hades' health and endurance was.

How is that situation in any way comparable to Layla, who's body was literally too weak to even be a mage?

Furthermore Kyouka was hitting all potential recruits with that magic that turned anyone not strong enough into paper-dolls. That's a very clear indication that they only accept strong ones into their ranks.

Gaining the knowledge of the One Magic that Layla had, could just as easily have been done by torturing the information out of her. Or using Geers telepathy to read it out of her mind. Or taking her husband and daughter hostage to force her to talk. Or maybe making Franmalth absorb her... not sure if he gains the knowledge of absorbed Humans.