The U.S. Frustration over the Change in the Middle East
Admitting frustration over Saudi's China-brokered rapprochement with Iran and Syria's new deal after implicit denial of their significance or strategic nature is a very good first step provided that it be complemented with considering the fact of being consequences of US policies and checking and reviewing these failed policies.
I said it before, it is a strategic move and new deal:
And it is a consequence of the US frustrating and failing policies: