Don't you think we tend to define "landscape" overly rigidly? A landscape is a landscape whether anyone is in it or not. If someone is in it maybe it is a landscape with a person in it. In fact, I'm going to walk through a landscape in a few minutes to get to my truck, and then I'm going to drive through a lot of landscape to get to my job.
We tend to see in very conventionalized ways. Whether we are aware of it or not, the "landscape" we are shooting just might be a match between what we see in front of us and a template formed through exposure to many landscape photographs done by others. It is very hard to break out of that box. Sometimes it helps, for me, to actually play with my likes and dislikes. Who knows, they just might change.