You're describing two very specific cases that I'll dive into right after an observation.
We have intensive review processes that are driven by algorithmic decision-making as well as a focus on keywords, and then also details about the account itself. For example, on a brand new account attempting to post content on flagged material, you may see that you're not able to post it publicly before it's reviewed. You may see that you're not able to monetize it until we've actually reviewed it. We go through this process to ensure that we're checking it against the corpus of material that we are aware of.
I say that specifically because in your first instance, it's quite possible that when you posted a video of televised CPAC material.... CPAC has worked with us to register CPAC material as material that needs to be reviewed under our content ID guidelines. That's our protection for copyright holders that want to avoid television programs, movies, music from being posted by users without their permission.