The thing is, if what Google displays as "the most relevant X" is always or predominantly or even merely often a Google site, rather than what is actually the most relevant X, then Google is abusing their dominant position to create advantage in related markets. I do agree that the failed 2014 deal was a piece of crap.
I fundamentally don't believe the rules should suddenly become different when you become sufficiently successful. There's no size threshold above which you ought to have to listen when everyone wants a cut. Now, if you're colluding to suppress other products that are actually better, that's a different matter; that's wrong no matter how big or small you are. But that's not what we're talking about here.
And I say that as someone who uses DDG for search, and voluntarily chose to switch for a variety of reasons.
The problem is the definition of what are 'facts'. Are birthdates? Are consumer good prices? Are classified postings? Airline flight times?