alt Hacker NewsRadars and bases along the path of travel from Iran to Israel have been progressively degraded. Various interceptor types also have low stockpiles at present. I'm absolutely not an expert keeping well-informed, but my understanding is that Jordan's recent losses mean much of the path is now relatively clear of air defenses, and Israel would have to mount most/all defenses from their own territory for the first time. But Israel is at-present not engaging in the war, preferring to let US do the work, as a minister recently stated. Regardless, it may be attacked, depending on IDF actions in Lebanon.
Iran also isn't hitting Israel because they know Israel will go after Tehran and the regime more directly. They were the ones to target the Basij police, industrial and steel plants, government buildings etc. America is mostly constraining itself to bombing the coast and military assets, with a focus on the strait.
That plus most of Iran's attacks on Israel didn't do anything and likely still won't. Which is why Iran focused on the weaker gulf states even when Israel was involved.