How Did the EU End Up Being the Odd One Out?

That's the question I have when both the UK and now the US' Federal Trade Commission are suing to block the Microsoft acquisition of Blizzard.

Typically the EU is the one these days who is less of a paper tiger for mergers/acquisitions than the UK and US are, but I suppose that everybody is allowed an outlier.

Or maybe the EU plays more Diablo 4 than we guessed.