Democratizing game creation, that's the motivation they both shared.
No one is saying that Godot will merge with an ad company in X years, my entire original point is that taking on VC funding is what pushed the main vision of Unity's founders away from where it started.
Now you have the person who's title was "head of development" for Godot taking on the title of "CEO" of a profit VC funded entity and you really have trouble seeing any parallels?
Open Source is not a panacea for a project's leadership having shifting goals. It definitely doesn't hurt, but when you're talking about taking on incumbents like Unity and Unreal, it won't be easy to recover if "W4" starts losing focus because VCs want to do VC things.