Australian Classification: M or MA15+?

Looking at the classification for No More Heroes on PS3
http://www.classification.gov.au/www/cob/find.nsf/d853f429dd038ae1ca25759b0003557c/695e19500a49ea6eca25782b0057f369?OpenDocument
http://www.classification.gov.au/www/cob/find.nsf/d853f429dd038ae1ca25759b0003557c/8302441a8cd7adfbca257862005806e7?OpenDocument

Makes me wonder whats going on at the classification office.


Unrelated note:
I got my copy of the new Mortal Kombat and the funny thing is that Customs open the package and left a note saying that they open it and didn't find anything illegal...