I agree with you on the point that Currently Rivian is not in condition to develop it. But “Real Real Real” Technology differentiator will be creating own “Vehicle Processor Chip”. Only this is the thing where China will fall behind in copying. Otherwise China will copy every other innovation...
First of all let me highlight what happened at Apple when iPhone first came out and how eventually Steve Jobs change everything around Apple.
When the original iPhone came out in 2007, Steve Jobs was well aware of its flaws. It had no front camera, measly battery life, and a slow 2G connection...