It’s clearly unreasonable to assume that LG can know and procure consent from everyone you choose to allow into your living room.
It’s reasonable to push the burden of procuring that consent onto whoever controls entry to the space, with terms like this.
As a thought experiment, let’s take a service like Zoom where you can record video of participants. It’s reasonable to say “you’re operating the camera, if someone appears in the background, it’s your responsibility to make sure they’re informed and consent to the recording”. In fact, trying to establish the identity of the person in the background for the purposes of procuring consent is probably a greater intrusion on privacy than not.
The problem here is different. The problem is that the volume of data being collected is clearly unnecessary for achieving the purposes it’s intended for.