They have a lot to fear from their citizens knowing that what they hear from their officials is not all the truth.

Some time in the future, when someone mentions the Jewish genocide, people will ask if they mean the one happened to them or the one they did.

Obviously the current Israeli government will want to control the information flow so they can proceed with their final solution to the Gaza issue. They will also try to control what comes out of Gaza to avoid the consequences of their actions.