I have no horse in this race, but the pros and cons of a technology that is aiming to replace an incumbent that has lasted a century across the globe with milli

I have no horse in this race, but the pros and cons of a technology that is aiming to replace an incumbent that has lasted a century across the globe with millions (billions?) of users and units produced have to be evaluated as a complete system and in many more ways than pure engineering calculations. Fuel production, distribution networks, behavioural science, town planning, etc. were of little to no interest to the scientists you deride, but need to be considered too.