Rather than express anger at his direct approach, the assembled leaders and dictators then gave speech after speech (still ongoing as of this writing), in full support of all he said. In the opening greeting of their speeches, any addressed the U.S. President before the Saudi king. He is clearly the figure at this summit.
Also of note was the focus on Iran. The Saudi King opened the session. Although it was a like listening to Obama (lots of BS), he did include a harsh condemnation of the Iranian government in his comment. President Trump did the same.
So the American swerve into Obama kowtowing subservience is definitely over. Now let's see what develops.