Who do you think will have learned the most from last night. How quick Israel can react to incoming threats, effect it had (and will have in the next few days),to how Israeli public reacts, what level of and from where US/UK assist?I've seen this a lot today, but it really does not ring true - most of these launchers are mobile and the fixed elements are well known to everyone.
It would be more correct to say that the capabilities of the Israeli / US air defence system against a mass attack are now more known, but given that this is (IIRC) the largest multi-spectrum drone and missile attack in history (at least against a modern networked air defence system) the learning there has probably informed the Israelis / Yanks much more than anyone else.
What Iran fired last night was nothing new, no new tech, probably no clever flight paths etc so it's hard to see what Israel would have learned that they didn't already know.
Just seems like it was a learning opportunity for them, even if that wasnt the purpose.