I think it was pretty obvious that Jaune thought he was talking to Oscar. His comment "You mean Ozpin has" wouldn't make any sense otherwise. So it seems like the lines are blurring for Oscar.
I am well aware that Jaune thought he was talking to Oscar. You seem to have misunderstood something. At this point, I accept that Oscar himself isn't fully clear on the difference between his own and Oz's pasts, and Aaron Dismuke's voice acting is portraying that blur as well.
What I would really want to see is the Qrow's perspective when they all arrived in Vacuo and Raven come to him and ask him where is Yang. I'm really convince that she had to feel with her semblance that Yang just "disapeared" and that this is why she decided to go to Vacuo. Other than that, maybe the Weiss's family perspective before and/or after she came back 🙃
I will not. Not only do I talk over it, I intentially make the audio of the episode quieter when I'm talking so that my voice comes through clearly. Reaction videos are not your place to watch the original work. You can watch it here: roosterteeth.com/series/rwby?season=10