Situation is middle east is changing altogether. KSA after negotiating with Iran now shakes hands with Syria. KSA making peace means all Gulf countries doing the same. KSA has also shown tilt towards Russia and China which is clear indication that KSA is looking for new alliance. But if KSA moves away from USA then what will happen to KSA billions of dollars residing in USA banks ?
It's amazing to know that Iran has such technology or they have such combat experience that they can make USA nuclear powered submarine to surface. For decades Iran has been isolated because of USA sanctions and despite that Iran is standing shoulder to shoulder with USA in military technology.
The new king (Mohammed bin Salman Al Saud) is quite intelligent and he refuses to be a slave of the United States. It was just a matter of time before the Saudis realize that they are being used as the lapdogs by the United States. As a result they are improving the cooperation between Iran and it's allies such as Syria. Also, they have helped Russia in difficult times, by agreeing to a crude oil production cut. And Russia is not exporting huge quantities of diesel to Saudi Arabia and the United Arab Emirates, where they are being rebranded and re-exported.