I can understand why he expects a knife that costs that much to be pretty.
A knife that is lighter than expected may well feel "cheap" to some people, but that is a subjective thing, and not really relevant IMO.
The issues with dirt, lint, and wear are things that will happen if you actually use the thing. The only way to avoid them is to lock it up in a display case where it will not be much good to you. Every pocket knife I ever had, and I think that is a total of three in my whole life, got linty, dirty, and worn from being in my pocket and getting use.
The only serious issue I see with his knife is it opening up in his pocket. And if that is simply a matter of him not maintaining the knife properly as an earlier poster claimed, I would not be real concerned. No doubt it came with instructions and somewhere in the instructions it mentioned that little tidbit. from reading the article, I wonder if he loosened it up a little to make the blade easier to open, leading to the problem of it opening in his pocket.
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Warning - I am not an expert on anything having to do with this forum, but that won't stop me from saying what I think.
Bob