Or the 80s when games literally had a fake photo on the box that was not even about the game? The trend of showing actual game screenshot came later.
Mainly because, at least for mobile game ads, the quality of the fake gameplay video is technically achievable by my device. But the major problem is that the ads often show a much more fun and interesting game, mechanics and graphics…
Everyone knew the images on the box weren't real, that seems an odd thing to complain about.