What always confuses me about the „search has gotten so bad“ mentality is that it is often based on anecdotal evidence at best, and anecdotal recollection at worst. Like, sure, I have the impression that search got worse over the last years, but .. has it really? How could you tell? And, honestly, this should be a verifiable claim; you can just try the top N search terms from Google trends or whatever and see how the…
1) The step where you evaluate "how they perform" is necessarily subjective.
2) you could design a study and recruit participants but that isn't something a blogger is going to do.
3) He does link to polls where people agree with the idea the result have gotten worse. Yeah, there are sampling problems with a poll, but its better than nothing.
In this case especially, the writer is answering the question: "Whose results are best according to my tastes?"