It's not a bug, it's something politicians don't want to touch because nobody wants to be the person that is soft on anything to do with minors and sex. Of course our laws are completely illogical - the fact that you could be put in prison and a sex offender registry for life for having a single photo of a naked 17 year old (how in the hell were you supposed to know?) on your device is ridiculous.
But, again, who is going to decide to put forward a bill to change that? It's all risk and no reward for the politician.