I don't think it's implying that's the only thing women are judged on. It's just that the device they're selling is for pelvic floor exercises, so the advertising is specifically going to focus on pelvic floor related activities.
Either way, yes, it's a rubbish advert but it's supposed to be. It's a social media ad created in five seconds to sell Chinese drop-shipped crap. It's meant to grab immediate attention when people are scrolling, which is what it's done. It's deliberately designed that way.
My friend recently sent me a screenshot of an Instagram ad that was basically a cartoon bum with the words 'SICK OF AN ITCHY ANUS?' across it in massive capital letters. This sort of thing is par for the course for social media ads for drop-shipped tat.