Actually, she has some significance because she was inside the Hollywood culture. She can shed some light on what has been going on in there. Beyond that, she has an audience that listens to her, so she can redpill people.

it's extremely complicated

It's a matter of perspective. Everything simple is complicated. An apple sitting on a counter is not exhibiting complicated behavior, but look deeper, and it becomes a quantum soup so complex that it is not even something we can imagine in any meaningful way.

Barr has no more relevance than any of us, that is what you're missing.

Well, perhaps, but not from a certain perspective. She is more relevant in some ways by her being both an insider and an actor that is part of the show. What I meant in my post was, that everyone that we see is both an insider AND an actor. This means two things:

1. We are watching a movie. EVERYTHING we see is a part of that movie, including her statements here. This, btw, is what I meant by "It's not complicated."
2. That movie has a director. That director is also an insider. Are they directing this show on behalf of the Cabal or We The People? I think it's the latter. There is a lot of evidence to support that, but I suggest we won't really know until the credits start rolling.