night, causing the Iranians to possibly retaliate to save face
https://www.jpost.com/middle-east/iran-news/israeli-sources-to-post-an-eye-for-an-eye-not-clear-why-pentagon-leaked-info-on-attack-797885
Apparently Iran was going to accept the attack as a reasonable retaliation for their attack earlier and was going to downplay it. Now that the admin stated clearly it was Israel, Iran is going to retaliate to look tough.