Did they have access to the walls and ceiling of the building?
If so, why didn’t they have their own video and audio, perhaps even entry?
They probably did - but a professional cameraman with cameras costing tens of thousands of dollars at his disposal (this could all be seen from the actual TV studio - it’s used for morning shows, so has a glass wall so the street outside can be seen including the Cafe - quite possibly why the creature chose the location he did seeking publicity) can get a lot of very clear detail. So they used him.