I took a look at the blog, and the emphasis is on the "safety" of having a guide, who would protect clients from getting altitude sickness. No mentioning the fact that independent trekkers get LESS AMS than guided group members (German study which can be found on the net).
Another curious snippet from the blog: while he was hiking down from Kala Pattar to Gorak Shep, four helicopters were rescuing trekkers from KP in 30 minutes. The writer just thinks that this proves how dangerous high altitude trekking is, unaware that he is witnessing a huge heli-rescue scam operated by the very same guides he is promoting, with agencies and helicopter operators (who now own also hospitals in Kathmandu). It is quite unbelievable that something like that is now taken as a norm, while I would say that some 30 years ago there maybe were 4 rescues in a year, if even that, and people did not die any more than they do now. Now a $11000 helicopter/hospital rescue is needed to treat mild AMS, back then one paid $5 to a porter to accompany a sick trekker down one village to recover.