Or, It could just be that Israel is one hell of a lot more competent, organized, and capable that their enemies who are minds are still stuck 1400 years ago.
Like mussolini's war machine, Israel's enemies just AREN'T up the task that they try to chew on.
Probably why the soviets used to sell them the 'monkey model' of tanks and planes rather than the good stuff. Outside it looked like a Rolls Royce...inside.... a Yugo.