The first part of this article is all about apps doing unnecessarily large network requests. The lack of gzip, optimized images, and redundant requests are more a sign of developers having not enough time or knowledge in the area of bandwidth optimization.
The second half of the article is much more interesting with a discussion of the horrible security practices in apps (or lack thereof). It is an indichtment of Facebook, flurry, and any other app that is leaking data (including passwords) without the user's permission.