It is no secret that Iran and Israel worked closely together during the Iraq and Iran war:
Israeli support for Iran during the Iran
They even carried out the Osirak bombing DURING the war an act clearly coordinated with Iran at the time. And we still remember this fact to this day which is why Israel and Iran working together is considered a big possibility considering they are both Anti-Arab.
How even if that was true does that mitigate sauds dancing or plodding to Israel's tune,