Are you implying that the restriction is right, because of the content, even how disgusting as it may be? I don't think drawings should be censored, and I see no basis behind censoring them.

I think that it is a relevant factor for people to consider to make a view on whether the policy is correct or not.

It's worth viewing in the larger context though - it shows that the legislature has no problem censoring things, even possession of certain things, without evidence. In my opinion that sets a rather big precedent, whether you disagree with the specific content in this instance or not.

In terms of the principle, the actual content shouldn't matter in the slightest.