I knew when I heard that audio clip, there is absolutely no way this film was going to make a PG-13 here in the states. I saw Hunger Games (PG-13) a few weeks ago and that coulda been on the ABC family movie of the week (unedited).
Just that Audio alone would make it PG-13, not to mention Shaw's "Extraction" scene and the whole face melting thing.
If you read between the lines, I think Ridley has been fighting with FOX this whole time. Despite what they say in public about not cutting one frame, I think they were privately pushing Ridley for a PG 13 this entire time.