I think it's only on FT where you'd see a discussion like this, at least regarding AA. I know what the typical non-frequent flyer means when they talk about a "direct flight." I don't correct them.

Non-FT person #1: I'm flying from Chicago to Nashville on American and it's a direct flight!
Non-FT person #2: Good for you!

Non-FT person #1: I'm flying from Chicago to Nashville on American and it's a direct flight!
FT person: Do you mean "direct" or "non-stop"?
Non-FT: Huh?
FT: "Direct" means the plane could stop between ORD and BNA. I think you mean "non-stop." You'd better check to be sure.
Non-FT: What are "ORD" and "BNA"?

No, I doubt very much that plane will make a stop.