It's a well established term, and puzzle games like Myst are generally considered a subgrenre: https://en.wikipedia.org/wiki/Adventure_game
On the magazines I used to read Adventure was a synonymous of Point and Click.
I definitely don't trust Wikipedia on these kind of things, anyhow it could be that the terms were different in different countries or just different magazines
Oh, you're Marginalia's developer, congratulations :)