There is a big spoonful of double standards when it comes to this but I won't go into that and stay on topic. Ultimately a set of footballing fans should not be banned to a football match. Especially if they do that on the basis of home supporters not being able to control themselves.
They had issues at Ajax, because they very stupidly put on a pro Palestine protest on pre match. What on earth did they think would come of that? There is nothing to gain what so ever and if you care that much, pop over to Israel and protest, of course they fucking wouldn't. I would imagine that if there was no protests it would go a lot smoother. As someone else said, what happens when Spurs come to Villa this season then? I don't imagine the Tel Aviv fans are blameless and I imagine, like every set of footballing fans in the country, they will have cunts following them too. By banning them it has created a bigger story, their die hard fans I imagine will still travel and you potentially may get greater trouble than first feared.