I agree with most of what is said about the DRM and the way Netflix rental model works.
However what is not mentioned in this article is that OSX has yet to have been supported by Netflix, so this requires you to run parallels/vm ware or boot camp to run a flavor of windows to then be able to watch the Netflix downloadable rentals. Once Netflixs can give me downloadable rentals natively on OS X then I think Apple will then start changing the rules on how long rentals last.
Sorry Apple, Netflix Is Just Too Good