I think people are missing the OP's point.
He's rightly pointing out this almost hypocritical view we have in society.
Many here are saying the kirpan isn't dangerous because of X, Y and Z, I think the OP's trying to draw attention the fact that there's more uproar in regards to a peice of cloth then something that, normally brandished, would get you a prison scentence.
Anyway, I've never heard of a kirpan ( until now with that one news link) being misused and thus I think the current system in place is fine.