He is saying that non-google search engines are just repackaging google search results because no one actually has the resources to build a search engine anymore. Bing was already caught doing this like 10 years back if I remember correctly, and while I doubt Bing still does this, I bet a number of the smaller players do.

It's as easy as setting up a lambda with headless chromium and then integrating those results into whatever internal results your system has (if any) on the fly. Google is fast enough that this could be done without any perceptible performance impact, and that's ignoring the possibility of massive caching of common searches. It will look like normal web traffic to google, and the lambda network will result in a diversity of IP addresses, so it might never get flagged.