"Most people"? Even if that's true (which I don't think it is) you have to admit that there's a significant portion of the population for whom that isn't the tradeoff.
I probably spend 1 or 2 hours a week on Netflix, and I haven't spent a significant amount of time per week on video games in years, so your proposed tradeoff isn't the tradeoff in my life.
> I really don't think the trade-off between Netflix time and house cleanliness is a false perception synthesized by advertisers.
Really? You haven't seen any ads for video games or Netflix? I go to fairly extensive lengths to avoid seeing ads and I have seen both.
It certainly is better than NOT walking, but pretending like walking down the street or cleaning your house is exercise is disingenuous.