I didn't know was disabled.
And I disagree, there are is a card and a shield that prevents knockback. So knockback in WoE would by no means be overpowered or abused.
If anything, it would add variety to the way WoE is played. A castle can be better defended instead of the usual breakers rushing in. But then again, just my two cents. I don't WoE anyway.
Oh and, 'sup Anniekins.