But then how can they fly upside down?

Somehow the article (and your summary) leave out the actual complain.

ABC news: “She is accused of making “forcible contact” with authorities, including allegedly slamming her forearm into a Homeland Security Investigations agent and pushing and using “each of her forearms to forcibly strike” an ICE officer, according to the complaint”.

It’s funny cuz people actually think this way, and don’t realize what a self-own it is.