Israel both blocks the trucks from collection after letting them in, and lies about the amount they enter. But also your link is broken mr 2 hour old Hasbara account.

https://www.npr.org/2024/07/15/nx-s1-5035998/gaza-israel-food-aid-piling-up-not-reaching-those-in-need

KEREM SHALOM CROSSING, ISRAEL-GAZA BORDER — More than a dozen empty flatbed trucks from Gaza rumble through the opening in the massive concrete wall that marks the border here. They park on the Israeli side and forklift drivers jump into action, loading huge sacks of flour, along with boxes of watermelons, mangoes, tomatoes and onions. Within 30 minutes, the trucks turn around and drive the short distance back into Gaza.

This scene plays out multiple times daily at Kerem Shalom, now the main artery supplying Gaza with food and medicine. All this activity raises hope that needed aid will reach the more than 2 million Palestinians trapped inside Gaza.

But here’s the catch: Much of this humanitarian aid is piling up on the Gaza side of the border instead of traveling the last few miles to those suffering in the 10th month of the war between Israel and Hamas