The underlying premise is that "these dumb sand people are too stupid to have carefully planned and executed a complex mission, the truth is that wE kNeW aBoUt It in advance but no one listened. Here take a look at these 'secret reports' by unnamed intelligence officials."
It reminds me of the ancient alien shit of how "there's no way the stupid ancient egyptian skull brains could have made the pyramids, it must have been advanced aliens who showed them!"
Or another thing I hear is "Israel has the most advanced spying network, hOw cOuLd ThEy NoT hAvE kNoWn???" Ok well the resistance fighters completely owning all their "high tech" shit (or how Hezbollah sent a drone over big cities and completely avoided the Iron Dome) proves that maybe their systems were actually shit and not really "advanced" in the first place.
Another thing ppl might say is "well why would Israeli media leak or talk about it? wouldn't that make them look bad? thus maybe it's true?" Think about it, what looks worse: completely getting owned or saying "oh yeah we knew about it but someone forgot to mention it up the chain." They're obviously lying to make themselves look better. I hate that some commentators I see know that Israeli media lies but then when it comes to these "bombshell" reports they completely believe them. It's sad, because it plays into the racist trope that the Palestinians are actually stupid and any military victories are "actually we knew about it but stumbled somewhere"
They are certainly bigoted, but I think you are vastly underestimating the totality of the IDF's mass surveillance of Palestinians.