He’s just covering his tracks when he was caught bowing to the Saudis.
Actually that was the first thought I had simply by reading the title. Good catch!
I expect that you're right. It was intended to be ex post facto plausible deniability for his bow to the Saudi King.
What it really does is prove beyond a shadow of a doubt (destroying every phony excuse made for him) that he did indeed bow to the Saudi King.