I honestly think that AI goes against Kagis's main purpose. I see it as a tool to search the Internet. Carefully craft what you think is relevant, try to remove as much AI generated crap from your results, etc.

By using AI you are doing the opposite. You are letting some random AI get the results for you.

That's assuming Kagi assistant is the AI that searches the Internet. I don't know, I have never used it. I use Kagi search every day though