When I read the wiki page, I don't personally think much swivels on whether a human or algorithm creates the filter since the reason it's an issue is the end result.

Or rather, "it's okay since it's not an algorithm doing it" doesn't wave away the concerns very effectively.

The argument you're responding to wasn't "it's okay since it's not an algorithm doing it". It was "it's not a filter bubble since it's not personalized".

This is not an us or them case, is a true or false case. And false and true don't share a value of 50/50%. Unless we want to use a browser as moron-classifier, false results had a value of 0 in a search.

False facts are valuable in a search only as if tagged as debunked as false in the same page.

With search taken as a whole, the search results a person gets varies depending on a personal factor (namely, their go-to search engine) and not just the query. That's similar to a filter bubble, even if it isn't precisely one.