Sorry, I don't understand the overriding sentiment here..
Are we now asking Google et al to be the gatekeepers of what is deemed correct and useful because they have a preferred alternative that fits with our view on the world?
W3Schools may not have the best historic reputation, but it still has a place in relevant search results.
I have personally used MDN extensively over the years, and love it for what it is.
Google already overrides ranking to put its own preferred things first in your results. The time to complain about Google being a "gatekeeper of what is deemed correct and useful" was years ago; now it's far too late.
Are we now asking Google et al to be the gatekeepers of what is deemed correct and useful because they have a preferred alternative that fits with our view on the world?
W3Schools may not have the best historic reputation, but it still has a place in relevant search results.
I have personally used MDN extensively over the years, and love it for what it is.