There are eerie similarities between bible-believing groups who use the "shepherding movement"/discipleship church model, which GC and SGM do. When certain doctrines are introduced to any church they have specific effects upon that church, which I think is why this list of SGM's problems reminds us so much of GC's. It certainly is like looking into an alternate dysfunctional world when reading that list. GCM of course has its own distinctive from SGM, but much remains the same between them.
Larry Pile has an interesting article on these types of churches and their characteristics:
http://gcxweb.org/Misc/LarryPile-OtherSideOfDiscipleship.aspx