The problem is, the internet has adapted to the Google of a year ago, which means that setting Google search back to 2009 just means that every "SEO hacker" gets to have a field day to get spam to the top of results without any controls to prevent them.
Google built a search engine optimized for the early internet. Bad actors adapted, to siphon money out of Google traffic. Google adapted to stop them. Bad actors adapted. So began a cat-and-mouse game which ended with the pre-AI Google search we all know and hate today. Through their success, Google has destroyed the internet that was; and all that's left is whatever this is. No matter what happens next, Google search is toast.