The pier provides something else to Israel: a large escape hatch for forcibly transferring a large population without resettling them in Israel (or Egypt). This plan was suggested last year by an Israeli think tank linked to Likud and the current Israeli war cabinet: https://www.middleeastmonitor.com/20231024-israel-think-tank...
(By the way, there is still some aid attempting to enter Gaza via the land routes but there are multiple examples of trucks being blocked and food being destroyed. Here’s a video from last week where the IDF watched as food aid was blocked and burned: https://x.com/sapir_slam/status/1791143191988543538?s=46)