They also go out of their way (at other times, other reviewers, etc) to mention that not all good gear can get a review as there is so much of it out there, and only so many reviewers... and only so much capacity to do the work, and only so much finances to support that.
So that sword cuts both ways, big time. Not being reviewed does not mean an item is bad. Being reviewed generally means an item is OK, at the least.
To not get into negative reviews, is the most important part. Very bad for the review and publication business. Santa Claus as a inconstant butcher, not your gift giving friend. We all know which Santa we want to allow in our sphere of life. Bad reviews = death of the reviewing site or rag.
This gives lie to the idea that websites that are half forum or whatnot, and have threads where audio gear is tested and or trashed all the time ..where they somehow make this out as being the heroes who fix the industry, and drag it before the public courts.. psychologically positioned as the great heroes exposing the beast? Yeah, right.
The item to be looked at for reviewing...is screened, beforehand...so as to avoid the problem of having to publish a negative review.
Nothing nefarious about it, just basic common sense, when someone looks at all the data points on one table.