I would assume they didn't answer this because the answer is either "No" because echo chamber or "Yes" but they don't want to say that publicly.
To be more explicit, yes, we're aware that there are complaints about the quality of search results. That's why we've been working in a variety of ways, as I indicated, to improve those.
We have continued to build our spam fighting systems, our core ranking systems, our systems to reward helpful content. We expanded our product reviews system to cover all types of reviews, as this explains: https://status.search.google.com/incidents/5XRfC46rorevFt8yN...
We regularly improve these systems, which we share about on this page: https://status.search.google.com/products/rGHU1u87FJnkP6W2Gw...
The work isn't stopping. You'll continue to see us revise these systems to address some of the concerns people have raised.
So it seems the search quality team exists but gets locked on in the closet by advertising periodically.
I know you can't verify anything directly but maybe we could set a system of code for you to communicate what's really happening...