I am a beginner myself but here are some comments.
I think Vaughn's second image Joshua Tree is most instructive here. If you look at the two bright lines in the foreground to midground, they lead the eye to the two rocks and then to the sky. The light of the two "lines" match and compliment the light of the sky quite well.
I'm guessing that the photographers of the images with blank skies that you liked similarly managed to incorporate their skies into the composition of their images and into what they were trying to communicate.
Imagine looking at the original negative of this image, the balance of light and dark elements and the graphic qualities would still be there.
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