Actually, if you read the entire piece and not just the first 8 paragraphs it does address efforts by the other - the Intel's, HP's etc. who seem to be much more pro-active, less secretive, etc. The sum of the article definitely leave a taste in your mouth that Apple has chosen profit and consciously chosen to ignore pretty frightening practices of it's sub-contractors/suppliers. A conclusion that seems to be supported by outside independent monitoring groups, etc.
As an aside, I've been involved in contracts with, ahem, said named party as well as HP, Intel and Google in the past 12 months. Guess which one had nothing in it about labor/employment practices for subcontractors?