I don't completely dispute his methods. I just wish they were a bit more scientific so one test could be compared to the next...he's getting better in that he's at least standardised his methods (sorta).
One of the first articles about the LMFII (I use this as an example because it's the only knife I own which he's destroyed testing) was written by a US military sniper who used his to drill a hole in cinder block wall so he could return fire without exposing himself. Reading about this sort of real world use eventually led me to that site.
On a sort of related note I just picked up the most recent copy of Field & Stream because they had a winter survival article in it and in the back they tested some knives. Some of the tests were along the lines of knifetest.com. The LMFII was the only knife to fully survive being pounded into a stump like a nail with a sledge hammer.