I take your word for it Mel, must be the fog. I have looked at them on Google Images, the Three Men themselves are closer together and dare I say it, less imposing than the images in the video. The Nine Standards stand in a clear separated line with open ground between them. The Three Men remind me of the line of cairns on the edge of Wild Boar Fell at High White Scar. I wonder if they serve the same purpose?
About 2 years ago I ploughed through a learned treatise about why or when the Nine Standards were built . The author's conclusion - nobody knows!
Edit: Just seen your picture on the other thread. See what you mean but not exactly 9 in a row are they?