I don't understand it either, but it's also because I don't know how modern TVs (2015+) behave when not connected.
But I wouldn't be surprised if Samsung and others would already be working on a solution where the TVs use your phone as a bridge to the internet. Or neighboring IoT devices (similar to Amazon Sidewalk).
I guess it's not easily done but if people were to send blatantly messed up data back to the servers that were listening to the creepy TVs it would undermine that value and maybe the manufacturers would reconsider.
But I wouldn't be surprised if Samsung and others would already be working on a solution where the TVs use your phone as a bridge to the internet. Or neighboring IoT devices (similar to Amazon Sidewalk).