Iran already started a shooting war with them via Hamas, whose ability to project force is 100% an Iranian project, so if you are Israel, when it comes to Iran, you'd ask "what escalation" with some justification. And as it relates to Iran, the beauty of being Israel is that Iran can't project much effective military power directly at Israel, if they want to make a statement, they have to do with some action like hitting Saudi oil tankers, which is then far more likely to draw a heavy US response. That's a win/win for Israel.