The article is presenting an idea, not a solution. You've failed to see this and have constructed several strawman arguments in order to critique it.
Most importantly the article does not present itself in a definite sense - it is written with care to say "I think", "Next thought:", "Probably", "So yeah.". This article is a person sharing what they are thinking, and unlike many of my thoughts - it is a fairly complete thought which is clearly sparking many other reasonable people to think along similar lines.
The author doesn't present the solution - but there is no reason they should have to. What an odd and unreasonable bar you set.
I also don't find your attacks on the authors site particularly endearing. The taste gap is well known, and punishing someone for their conceptual contribution outstripping their practical skill is quite... distasteful.
A more competently written critique would have been more charitable and in the spirit of this community.