He qualifies early on the types of games he’s discussing; anything with a story or that has meaning to us. IIRC he even mentioned the very scenario you bring up: A linear game where we still get to choose whether we finish it simply by not playing. He also mentions we can do this with other media like books.
It’s just an exploration of how we handle getting near the end of something that had meaning for us, both video games and events in our lives.
Ah ok then, thank you.