This take feels more like being upset about one individual's (Vlad) personal opinions about privacy and politics. But in my opinion, it fails to realize that assigning one person's views to an entire organization is a fallacy. Even if they are the leader.
As a service, I like Kagi. Both in principle, and in practice. I find the "summarize this page" feature to be very useful. I also like the idea of paying for value, rather than being forced to feed the advertising beast. So I pay for value. If it stops being valuable, I will stop paying. I care about privacy, but I also realize that we live in a world where there are serious limits on the amount of privacy that can be expected. So I have to just do the best I can with what is available. Kagi is at least an improvement on the standard "eyeballs are the product" business model.