Because "felt threatened" and "actually in threat" are not the same. We have spent decades enabling women's paranoia that every man is out to get them at any moment, which means I believe little of her actual details are accurate. While you seem to believe every single one, because I guess "believe women." The story told, the immediate video after with "literally shaking you guys omg" ring more alarm bells of "victim milking" than any possibility.

You aren't owed politeness, in either direction. If if it totally acceptable for her to react like a histrionic to him with no provocation, he is totally acceptable in doing the same.