it seem like you didn't understand the article. if you read the article you would understand that; 1. they didn't deny the basic needs, and that they made sure that there would not be a crisis. 2. there were stuff which were not on the lists, that made their way into Gaza, meaning that extra stuff came in besides for the basic needs.
Turkish warplanes destroy PKK targets in northern Iraq, say military sources (Reuters)
from the article: Israel releases papers detailing formula of Gaza blockade