You missed the part where they literally coordinated with the IDF on their trip, didn’t you?

No, I didn't. I just don't think that means much.

Yes, I'm sure they told the IDF, and that the IDF said "ok, sure". Then the IDF essentially ignored it. Maybe they entered the information into a database or something, but I doubt it was widely communicated. Maybe you have this image of the IDF as being this ultra-competent, supremely vigilant organization that never kills anybody by accident, so any killing has to be deliberate. I don't share that view. I think they're tossing so many bombs and care so little about collateral damage that WCK checking in with the IDF means essentially nothing.

The only reasons this could happen are intentional or criminal negligence.

Never attribute to malice what can adequately be attributed to stupidity.

Given how well this fits with the trends, it’s hard to imagine it was negligence.

Given how well it fits with the trends, it's hard to imagine it's anything but negligence. When the IDF is leveling Gaza, killing indiscriminately, targeting civilians with only a very slight tie to Hamas, it's no surprise if they kill some aid workers too.

The story I linked shows that they are targeting so many people that they spend only 20s verifying that the target Lavender came up with is a valid target before ordering a bomb strike. In that situation, it's completely unsurprising if they accidentally kill a convoy of international aid workers instead of a convoy of Palestinians.

Your theory is what, Israel is targeting every one of the 29,000 bombs they've dropped very precisely, with a whole lot of planning and thought, and that each one of them is a deliberate and careful target, and there are never screw-ups in any of those 29,000 bomb strikes? Given that this is a PR disaster for them, isn't it easier to assume it was a mistake caused by their unwillingness to thoroughly and carefully check every possible target to make sure that they never make a mistake?