Fair enough. I hope that was indeed the case. I also think that Google lawyer went into legal technicalities with merger doctrine, etc. (which I don't understand) without trying to provide real life analogies (with all their caveats) which some justices tried to do instead.
One analogy that comes to my mind is that the steering wheel, gas and brake pedals, hand brake, etc. are like APIs of a car and are implemented differently in a gas car vs. an electric car. It makes sense for an electric car company to stick to that API rather than replace the steering wheel with a joystick or buttons and have all drivers learn this new method to drive a new car. It would've made more intuitive sense