That's exactly why I don't think Iran approved this and Hezbollah screwed up and didn't expect the Israeli response. This is much to Israel's advantage not to have rockets raining down on them from Hezbollah and Hamas when the confrontation with Iran comes.
IMO, Iran armed Hezbollah just for that ocassion...now, what do they do. It looks like Israel will now have foreign troops (at some time) protecting their northern border. I expect Iran is pissed, big time.
Israel's Arrow and Patriot missile batteries can deal with the larger rockets that will be fired from Iran. Israel is much stronger now.
We really don't know our enemy very well....but I really would like to believe you have it right ....