Not machine-written, and three ways you could tell if it were
The claim
Every word is written by a person. Machine tools are used for transcription of interviews and for nothing else, and transcripts are checked.
How you could tell
The corrections. A generated piece does not produce specific, checkable factual errors that a reader with local knowledge can catch.
What I would do
If that ever changes, it will say so at the top of the piece rather than in a policy page nobody reads.
