What's the point of a federated search engine? At the end of the day most nodes will end up implementing the same regulations/censorship with development driven

What's the point of a federated search engine? At the end of the day most nodes will end up implementing the same regulations/censorship with development driven primarily by a few. It's like ethereum vs ethereum classic all over again. If the EU or the developers' respective governments demand a censorship or forgetting feature to be implemented, it's not like the federated nature would matter. An open source search index is useful, a search engine that can be easily self hosted is also useful. But building a search engine as a federated system is a gimmick with no significant value. Do you see any major Mastodon nodes interfacing with Truth Social or Gab? I certainly don't. If federation barely works for a social media app, I fail to see how it would even matter for a search engine.