I disagree. I personally think that their commentary is very important and adds a lot of value to the teardowns. While the repair guides should be strictly technical, the teardowns involve them giving us a lot of information, and are a cross between news article/blog post/repair guide. They are supposed to be more informative, rather than advisory.
Also, iFixit is pretty clear on the fact that they have [http://www.ifixit.com/Info/what|an agenda].
