Haven’t RTFT. I don’t think Israel is referring to the humanitarian relief being let through during this crisis, they’re referring to how people in the Gaza Strip have accessed energy and supplies over recent years.
Before this current conflict, Israel supplied Gaza with energy (electricity, also diesel, I think) clean water, and monitored imports into the territory.
If they won’t do this going forward, Gaza will have a huge energy crisis, water shortage, and I suppose all imports will have to come through Egypt. It’s going to be catastrophic for the 2.2 million residents.