That notion obviously applies to the plethora of "free" (free in quotes because I am not trying to dodge the fact that you are always paying something) websites which everyone frequents, but goes beyond that as well.
There's a comment on here complaining about how Hulu shows ads despite the fact that they are paying for the service. Well, you can pay more and not see those ads, but you have made a conscious decision to pay less for the service, so you get to pay some of your attention instead.
Back to the article -- it claims that "a hypothetical doubling of advertising expenditure would result in a 3% drop in life satisfaction." What I would like to see is some analysis of how much life satisfaction is earned back if all relevant products become proportionately cheaper. Then we would be in position to figure out what the sweet spot for society is using a price:advertising ratio as a slider.
That would be very interesting and result in a more productive conversation.