Mister Ironwood was trying!

[It comes out angrier than she expected. Penny turns a bit red, taking a small step back and fidgeting with the hem of her sweater.]

I mean- I'm sure he must have been trying to warn Professor Ozpin, or anyone who could've helped! I don't know why he didn't want everyone knowing, but he wouldn't have just done nothing. That must have been why he brought so many soldiers to Beacon for the festival.