I work at Kagi. We don't have KPIs that track search quality in that way (we don't have any frontend tracking at all, so we can't know if you click any of the results), and we haven't touched much the sources of data we're using over the last few months. We've also had conflicting reports about this problem, so I'm wondering if it's not variable quality over time and place of our upstreams that's a problem.

That said, we're aware that it's currently something we have to improve, "!g best cafe" is not where we want to be. We're working on it, but if you have specific examples/suggestions, please do submit them to kagifeedback.org so we can track them.