The Guardian's (now edited) headline was: "Middle East crisis live: Hamas warns it could end hostage talks after more than 100 Palestinians killed near aid trucks"

Because when israel slaughters hundreds of Palestinians they are intentionally starving, journalistic integrity requires that you obscure who did the killing or why thousands of Palestinans were so desperate for aid. The readers need to know that what's important is how Hamas(!!!) might react, of course, with the implication that Hamas would no longer be receptive to a hostage deal (even though the deals they've offered to israel have always been rejected).