"I don't really wanna defend King.com"

Sure. I cherry picked the negative because of this.

There are too many game engines that are made for special purpose studios (People who have experience with them)

I think there are a lot better GPL'd engines people should use so the community benefits; not Candy Trademark king King.com

Particularly Libgdx; Blender3d ; Godot

Now that I think about it game engines are a bit like Linux Distros in that all the options possibly dilutes the greater purpose.