The article converted all the measurements for a US audience, but the "square feet across" line halfway down is the only one they jumped on. Plus questioning why not just use diameter at the bottom of their comment.
Edit: Oh wait, sorry, I must have misread/not read that you agreed adding 'across' was weird initially. Thought you were just saying 'sqm/sqft no big deal move on' sort of thing.
Edit: Oh wait, sorry, I must have misread/not read that you agreed adding 'across' was weird initially. Thought you were just saying 'sqm/sqft no big deal move on' sort of thing.