Trust me is not like you are adding something while eating a sandwich and that's it. + you just miss the point, there are almost 200 countries in the World, why not adding all of them? Why Israel and not Palestine, Congo, etc?
As I said, we can't just get flooded with 20000 new emblems over the night, there is a system as far as I noticed and seems OK. I understand your concern and you have all the right to request it but basically if you don't have a strong point and a very good reason then you don't request for Israel, you request all the countries flags in the world.
Personal, I would rather see other countries then Israel, countries like China, Indonesia, Thai, etc because these countries have more players in the game then Israel but also they have some very active communities and clearly deserve more then others. Without being racist or so, here is what I think and I gave you my arguments.
Whenever you request something be sure you have something to support your requests, some good reasons otherwise is very unlikely to happen .