I agree that the footage shows a disturbing level of police brutality. I'm not sure the clip itself shows sexual assault, though, so the title may overstate what's visible. The violence is serious enough on its own; framing it more carefully would make the point without risking sensationalism or putting people off.

They were doing a comealong pull on the back of her pants. Which seemed to go inside the underwear. But that's not sexual assault. It diminishes the horror than is sexual assault with no good purpose because the brutality shown is plenty bad on its own without making shit up.