While I don't have an answer for your first question, there is a really good answer to the second.

A delay is a perfect solution for eliminating the tactical advantage that its imagery could offer, while still maintaining an eye on the region, not letting war crimes go unnoticed.

The delay rather than a blackout actually reinforces the idea that this is really about not providing intel to Iran. Three day old troop positions are totally useless, those troops are somewhere else now. A delay is totally sufficient to make their imagery non threatening. But if they were trying to hide the actions of either side, a delay wouldn't be enough, they'd need to hold those images back forever. Meaning, they aren't trying to hide the truth.