User blog comment:DiegoAnime3000/A lot headcanons were confirmed today/@comment-187.39.40.185-20140829014326/@comment-2006510-20140829020750

Yeah seriously, how?

If it's about Pyrrha's non-use of her Semblance (other than the stated), she could have consciously chosen not to have her enemies weapons/armor thrown about like toy cars, to have it hidden, or other things.