Here are before-and-after articles about the lawsuit from Video Business, the trade publication for the video rental industry:
http://www.videobusiness.com/article/CA6398859.html
http://www.videobusiness.com/article/CA6461951.html?q=nebg
NEBG, a retailers' association, sought to prevent Genius group, a distributor, from including an 800 pritned on the front of discs along with the message 'for sale only, call if you suspect piracy', arguaing that including this on DVDs would damage their members' businesses by implying criminal activity on their part. The case was dismissed since the labeling never took place, and so no harm had actually occurred. they were particularly annoyed because an exclusive rental distribution agreement existed between the distributor and Blockbuster, such that NEBG members had no way to obtain rental copies to offer to their customers.
They assert it is legal for them to do so under the first sale doctrine, but this has never actually been tested in court, so it would be more accurate to say it has not so far been forbidden. It is not established case law, and in this sense the Wikipedia article is incorrect.
If the studeios and distributors establish a 28 day sale window with Netflix's agreement, and if they make rental copies freely available to wholesale buyers, then there may well be a test case brought against anyone who sell consumer copies for rental, brought by both the distributors and very possibly Netflix themselves.
IANAL, but I am an industry professional, so that's my humble opinion.