Asked at the end, it measures who won the argument. Asked at the start, it shows you the room you are actually in — including the three people who were never going to say so.
Add the stance question twice — once before the discussion and once at the close. Run the first copy, have the argument, then run the second. If nothing moved, the discussion changed nobody's mind and the meeting can be shorter. If it moved, that is the meeting earning its hour. Both rounds are saved, and running the second copy closes and freezes the first automatically, so you can read them back one after the other in the summary once the session has ended.
Six in favour and four against is not broad agreement. In a decision meeting the number that matters is how many people are on the other side, and an average is designed to hide exactly that.
Type the decision as you intend to write it up, then ask whether that is what was decided. The two minutes it costs are cheaper than the thread that follows a decision nobody can quote.
The one-word question takes half a minute. A room that cannot say what it is deciding is having a status update, and a status update does not need all nine people or all sixty minutes.