User blog comment:Zathronas/Speculative author: Ozpin, the great and powerful/@comment-10390252-20140831163030/@comment-10390252-20140901154203

My guess is that Ozpin is fairly well aware of what Team RWBY are doing and is making a point of staying uninvolved. This is one part confidence in their abilities (although, something tells me he would have somehow manipulated JNPR to be there to support them if he knew they would be tussling with a war-ready battlemech), one part plausible deniability and one part because he's asessing how well they are dealing with this situation.

After all, if Ruby is to be the White Queen, then it is important that he determine just how good the leading candidates his most powerful pieces are when confronted with a puzzle to solve.

I'm pretty sure he already has most of the answers himself and also has a double- or triple-redundant plan in place to contain the situation if it is too much for the girls to handle. However, he is not going to intervene unless it is blatantly clear the situation requires it.