Earlier quoted context omitted.
Microsoft has a long history of not playing fair. If it were to have 33% of the market, it isn’t unthinkable that it will try all possible dirty tricks in the book to gain the upper hand. Right now, Windows Phone’s market share is negligible, Microsoft has zero leverage so it has to play by the book.
Microsoft is also a completely different company now than it was dozens of years ago when this was an issue. They're more safe now, less risky.
In the last decade, Microsoft has been investigated and fined by several governments, and investigations by several are still ongoing.