There is simply no way Iran could launch a score of cruise missiles at the Saudis undetected.
Another possibility is that they were detected, but just not successfully stopped.
“run by Saudis who probably turned it off to have some man-fun in the sun”
Man-fun - not just for Thursday nights anymore.
I could see some Saudis fumbling some balls on the job (little pun there), but I still am amazed that this much ordnance could travel long distances in that part of the world, without a bunch of screens lighting up. I have not heard of one shot being fired in defense.