It was a joke: as though the browser plugin were filtering out not only the ads, but my brain's ability to even imagine advertising.

I do sometimes notice product placement in shows and movies, and it annoys me - though the substitution of fake brands[1] also tends to break the spell, so it's hard to be as dogmatic about the practice as my general aversion to advertising would otherwise suggest. It is not a serious problem in practice, because I don't spend much time watching the kinds of shows where product placement would be relevant.

1: https://www.fakefactory.tv/home/products-n5sdk-rrpnn-zwp33-4...