As alternative perspective in terms of power dynamics: The Kagi CEO is a somewhat powerful figure as the CEO of a well-known tech company. The blog author is a random person from outside the tech startup culture.
The internet levels the playing field so the random person has the power to post criticism of the more powerful person and be heard. It doesn’t make sense to compare with the offline world because this wouldn’t be able to happen outside the internet.
In response the CEO is attempting to force them into a different context where he once again has power. The author recognizes this and therefore refuses.