Not a fan or an apologist for private jet travel but I would say she has reasonable couse to be fearful of her safety. https://www.independent.co.uk/arts-entertainment/music/news/... for example
Let's say that they do and they even manage to show up at LAX 20 minutes before her plane lands. Now what? Honestly. It's not as if they can just hang around at the baggage claim and find her there. What do you think they can do now? Surround the entire airport and stop every single vehicle from leaving until they find the one with her in it?