As with some of the comments on that post, I don’t find the author of your linked post, nor the ‘lori’ who wrote the post they refer to make a terribly compelling argument of why people should not use Kagi.

It’s almost entertaining at this point to see how out of touch they are. Many Proton users chose them because they were supposed to be the anti-techbro alternative to Google and Micro$oft, and alas, instead of actually taking a look in the mirror, they double down instead.