I think the issue is that you are saying things are "normal" without addressing whether or not they are right and good.
I would probably agree with you that it's normal for a country at war to want to control information flow. But that's absolutely a bad thing! Obviously not all "information" is created equal: some of it is high-quality and objective, and some of it is lies (and everything in between). I don't trust pretty much any government entity to be objective about these sorts of bans, though. The ultimate consequence of these sorts of things is a poorly-informed, propagandized public.
Oh and I find it completely normal for people killing other people to try to cover it up. Everyone likes to believe that they are the good ones and no one likes to face the consequences of their actions, therefore coverup it is.
What's perverse with that? Good Israelis and Palestinians kill each other everyday in the name of sick ideologies and power hungry politicians, of course they will have to control the flow of information. Otherwise it wouldn't work, Most people just want to live their lives and our planet is not overpopulated enough to warrant everyday people exterminating each other for resources.