Earlier quoted context omitted.
You have rediscovered why it is difficult to make a search engine. This is a problem that applies to all search results, not just politically charged content: human judgement is always required to write a search algorithm.
So where does that leave us? Everything is biased? What does that mean when applied to duckduckgo's tweet from 2019? It's just a hollow slogan? I'm not sure that changes the conclusion much. The first impression I got from reading the comment was that the tweet from 2019 was a hollow PR message that they don't stand behind.
Yes, humans have biases. There's not a way around it.
> What does that mean when applied to duckduckgo's tweet from 2019?
Yes, that tweet is obviously a vague marketing message, but if you read the entire quote in context, it was in reference to filter-bubble biases. It wasn't a claim that DDG employees are somehow superhuman creatures immune to human biases. Obviously that's a ridiculous interpretation.
Here's the source, in context:
https://spreadprivacy.com/why-use-duckduckgo-instead-of-goog...