Even if the aforementioned goodwill is transitory, Gaza disappears from the news cycle for a couple of days and the West turns their attention to the backers of Hamas, Hezbollah, et al.
As for the Iranians and Palestinians gloating, that is all for public consumption. Behind the veil, Iran will be feeling embarrassed at the lack of return on their attack, even if it was announced 72 hours prior to its enactment. Worse still, the most serious casualty is, if I read correctly, a 7 year-old girl, who is currently in critical condition. If she dies, Iran will get labelled a terrorist nation, not just a supporter of terrorism. As retaliation for their terrorist advisers killed in the embassy strike, this would be seen as even more of an indiscriminate terror attack, with a minimal return.
If I were to advise the Israelis, I would urge that they sit back and emphasize the civilian casualties of this drone attack and compare them directly to the seven Iranians killed. They do not need a retaliatory strike. The loss of face on the part of the Iranian military is retaliation enough. The exhibition of the IDF’s defence systems is enough of an Israeli victory to outweigh the need to strike back.
This then puts the onus on the Iranians to either stand by their word at the UN and face their ineffectiveness, or prove themselves liars and try again. Only then, would I let loose the IDF to respond.
But that response would be an overwhelming one that would return the Islamic Republic of Iran to the Stone Age.