Board Thread:Episode Discussion/@comment-26299202-20180110014145/@comment-2001:8A0:D225:A701:6569:7346:F456:DEAD-20180110210326

Honestly, I think it's actually more about arrogance. Cinder didn't share the info, because to her, Ozpin's group of kids are way beneath them and she doesn't even consider them a real threat.

They are not unaware of Qrow and Raven, who they probably consider worthy adversaries.