This is where regulation comes in. For the TV makers. Things should be secure by default and come with fines if they aren't.
As for the extracting of data, yes that happens on a massive scale. In free products that no one is forced to use. And I would argue that, by now, almost everyone should know that comes at a price, it's just not monetary to the user. At that point it's a choice people make and should be allowed to make.
