Unibodies do have a frame it’s just not a completely separate assembly like a ladder frame.
As others have said there are lots of places to jack a car. Nobody uses the flange on the rocker panels unless they’re trying to change a tire roadside with the emergency jack.
Mozilla is going to kill it too. https://youtube.com/clip/UgkxsdmHepmqMNqWM0BmW2RHemnarYeQk0bk?feature=shared