Wouldn't a a feature to turn all AI features work? You can turn of all AI from Brave search and duckduckgo and for Google just use startpage.
I'd rather that too. Kagi should try to curate like a Librarian and not some kind of oracle. They're not going to capture people with offering AI assistants. They will capture people by filtering out all the garbage places like Google throw into their results to get ad dollars.
I don't know if they're arrogant to consider themselves the main customer base, but I don't think it's an unfair assumption, either.
Kagi was almost advertised to me as what Google used to be. Again, I don't know if that's ever how Kagi put it themselves, but that's the impression that was given.