It was to be expected, they will send just enough missiles to cause some damage to save face that’s it, they can scream see we hit the great satan.
Iran knows it can’t face a full fledged war with the US so it’s a delicate balance of how can we respond so we can say we showed them but not enough to lead to retaliation from the US. Israel pretty much put them in control in under a week and the Us just demonstrated that they can reach Iran all the way from the US without detection. The B2 bombers flew 17 hours, dropped bombs for 25 mini and left before the Iranians knew what was going on.
Iran does not have the ability to strike the US homeland hence why they focus on nearby military bases in Iraq and Qatar.
We had the same when the US killed the Iranian General in 2020, they shouted and blustered revenge and then sent missiles that caused some damage to a US base but didn’t kill anyone and acted like they revenged his death.
https://www.nbcnews.com/news/amp/ncna1112171
It remains to be seen if Iran will be forced back to the negotiating table. They don’t really have many options tbh, they are running low on missiles, they know China or Russia will get into a war with the US for Iran, they are just not worth it, their terrorist groups that they sponsor are very weak right now and are staying out Hezbollah, Hamas and the Houthis.
If public sentiments in Iran continue to turn against the regime they may fear being toppled and decide reaching a deal is the better or two bad options.