The testing methodology is also odd, looking specifically for yt-dlp when asking for "download youtube video", when the web based downloaders that most of the big engines turn up on top make more sense for the average user, both due to not having to install a command line tool and due to not necessarily being on a device the tool can be installed on. I've often used the top Kagi result, and it has worked fine, yet has been labeled as scammy by the evaluator. IIRC that site also ranks high in Google's results. For adblock they expect specifically ublock origin, and consider ABP to not count despite it also being a very popular blocker.

Them complaining about why it's only Kagi users reaching out to him also seems unnecessarily aggressive, eg I've found their article through you, in the context of Kagi, so if I were to comment, it'd obviously be in that context.

However, how likely is this article to be brought up in the context of Bing, Google, ChatGPT or DDG, where there are many more carefully thought out and less dismissive comparisons and discussions out there?