Maybe, but one major problem with Google search is the perverse incentives. SEO garbage sites tend to be filled with Google advertisements, which means a Google search user who clicks through to a SEO site makes Google money. As long as the result is good enough, users still get what they need and the search is successful. And by good enough, I'm talking about sites like "geeksforgeeks", "towarddatascience" or "realpython" that just put additional text and ads around existing documentation; they do answer your search query, you just have to scroll and ignore the 20 ads on the page to get to it. It's to Google's benefit to offer one of these pages up over, say, python.org as the top result.
Kagi, at least for now, is making its USP the fact that it surfaces more professional, curated results. Its algorithm is susceptible to manipulation, for sure, but unlike Google, it actually has an incentive to keep SEO garbage off the first page of results.