I guess that since Epic owns Unreal Engine that bad news for Epic means good news for Godot?

I don’t think that Epic is going to want to divest from Unreal considering how much money it makes.

I also don’t think that it’s a zero-sum game. As a developer I want Unreal (and Unity) to be great so it creates more competition. Unreal has led the way in a lot of cool gaming tech that Godot is picking up.