> If I was discussing "board game culture"
No-one's talking about 'board game culture', though. This is about whether people play video games. If you were talking about the board games people play, Catan would be a barely visible blip; it'd be all about things like Monopoly. Now if you were talking about people who consider playing games part of their identity, I'd be inclined to agree (though there are edge cases; Pokemon Go falls into both 'casual game' and 'game that people get a bit weird about', for instance), but that's not at all what this survey is about.
EDIT: Also, well, media evolves. If you look at the sort of TV that's popular now, a lot of it is dramatically different to how it was in, say, the 80s and 90s. Someone who'd been in a coma since before Seinfeld came out would find modern sitcoms (with their lack of laugh tracks), and high production value dramas with multi-season story arcs (barely existed until this century), and reality shows, extremely weird. But they'd recognise that it was TV. And some 80s-style content still exists; it's just largely not what is popular right now.