Ah, the ol' what did they know and when did they know it game. Anytime anything bad happens the first human and organizational protective response is CYA.
I am curious if part of the problem is that Israel has so many intel departments and agencies (you know, not unlike us). You would have thought someone, somewhere would have heard something.
RE: Mossad, I would be very surprised if they weren't wired in regardless of whose playground it actually is. I mean, it's not like they are shy playing spy pretty publicly around the world.
To your last I would be surprised, too, if among the top 5 calls they got after this thing kicked off weren't from Egypt and Jordan given the history.
I had a conversation on Saturday afternoon with a college student who went to Israel with me last year. He asked me what I thought about the "intelligence failure" that led to Hamas' attack.
I told him that it's too soon to tell if there was, in fact, an intel failure. It could be a failure of command, or policy. Intel failure seems highly likely, but many historical "intel failures" were failures of imagination or leadership.
For example, Pearl Harbor.
"Hey, we saw a submarine that wasn't ours inside Pearl Harbor, and there was this flight of incoming airplanes that isn't ours coming in over the radar."
"I'm sure it's nothing. It's Sunday, I'm going golfing.
...or 9/11.
"Hey, we've noticed a bunch of creepy Middle Eastern guys who want to learn how to fly big airplanes, but not land them. Weird, right?"
"What are you, Islamophobic or racist? Take your pick. STFU and stay in your lane."
Even in the Yom Kippur war, back in 1973, there were all kinds of indications and warnings of massive Egyptian troop buildups, leaves being cancelled, etc. in both Syria and Egypt that should have tipped off commanders.
And in this current instance, Egypt is claiming that they gave Israel advanced warning that "something big" was coming.
Egypt intelligence official says Israel ignored repeated warnings of ‘something big’
Now I'm the first to admit the limitations and failings of the intel profession. And a completely ambiguous warning like "Something big is coming!" is pretty much useless without details or context.
But it's super convenient for politicians (and military leaders) to blame intelligence for their own failings.
That said, in something this big there is probably plenty of blame to go around for everyone.