I love how everyone complains about this but it's the way things go, ok it was long since set up, God slayers existed in the series long before now, Wendy was friends with one for a long time so its been long since planned, it's why God slaying magic exists. But what did you expect? God comes in, stops time, kills all and GG? That's not how FT is and we all know it, yet people would rather keep reading and complain that a God slayer beat a God, but lost all her magic. It couldn't be wendy as the dragon slayers have an important part to pay in the part to come with achnologia.
We've see the whole time stuff before in many series so it was nice to have a new magic that gives you your future power, that was a nice twist, now we can move on to bigger and better things. Wasn't the best chapter but nothing to complain about.