How current is that page? Yahoo used Google since 2015.
I've asked before, and no one seems to be able to provide me with a source that states that DuckDuckGo is just Bing. Yet it comes up every time DuckDuckGo is mentioned in a positive light.
Saying that Bing is one of hundreds of sources is like saying that PageRank was just one of Google's 200 signals. Or that Google was just one of hundreds during Bing's hiybbprqag brouhaha.