[613style]

It sounds like you might disagree that the room I'm in right now is filled with air or that my cup is full of tea.

This article is trying to help laypeople have better intuition about things from the quantum point of view. It's full of evocative prose. Arguing about the definition of the word "full" is completely tangential to the point.

[Retric]

More, I just think it’s misleading. Even the most basic introduction to physics should cover the idea that the air in the room has a pressure to it rather than the room being full.

The point of physics is to have a unified system where the same description applies to the widest possible number of phenomena. Calling atoms empty or full isn’t a great description but neutrino’s behavior for example lends itself to calling them empty.