iron dome is a boondoggle for high speed large yield ballistic missiles.
iran's main and booming weapons industry, which they are earning a mint from selling their drones to Russia, is drones. iron dome don't work on that. big drones, already are covered by standard SAMs but small drones require every possible strategic target to have a guard around it armed with shotguns because drones of the size of a small child can do way more damage and can be hidden, brought in by recon guys, launched, and they return to their hidey hole and key infrastructure, such as transmission antennas, power infrastructure and ammo caches can be attacked with them.
the persians are very crafty, historically well known as the inventors of the game of Chess and a great legacy of mathematical excellence. they are advantaged compared to israel because while israel has had a firehose of US money flooded at it, they built up boondoggles like the iron dome, and spent a lot of money on other standard 20th century standing army capabilities, whereas iran has less of a budget and have had to work on more unconventional warfare techniques, and funded enemies of israel like hizbollah and the houthis and the various others, including their neighbours like the former Assad regime of syria, and various groups in lebanon, jordan and so forth.
considering iran has china and russia as allies and trading partners, i think that israel is going to really regret trying to tread on iran.