Ecosia is not just Bing, we offer a bunch of indexes, including bing and Google.

We’re moving to our own index, which we are building in collaboration with Qwant, under the name European Search Perspective.

I do see the point of the article however.

I can testify that Qwant, if nothing else, is a superior image search engine (basically does what GIS used to do 10-15 years ago) and it's better for just getting to a quick answer without your first 4 results being ad-driven.

Unfortunately, when needing to do deeper dives on things, Google is still more or less the best for results past the first page in my experience, though it's rare I need to dig that deep these days.

I love Qwant and I think it works better than DuckDuckGo.

I can't wait for the European index.