A counterpoint to that is things like batteries, ram, motherboards, etc. in laptops (and pretty much every other device that uses rechargeable batteries). The fact is that for better designs the batteries are probably not going to be easily standardized in electric cars (also kills innovation).
PC motherboards aren't trying to use the least amount of space possible, because desktops can be large. The same isn't true with cars, the space matters.
I think their point was that there isn't anything humans could do during the night. Stars might give some light, but without a full moon you really can't do anything at night without lights.
I find it concerning that they both decide to leave due to price increases. Seems like if lyft stayed when Uber left they could easily make more being the only player. How does stuff like this not scream collusion.