I would not argue against that. Two steps forward and one back is usually how it goes with technology. Reliability is the problem that has only been achieved relatively recently. I remember a time when the hard shoulder was full of stalled vehicles. Japanese cars from the 70s and 80s were notably inferior to their competitors. We’ve come a long way in making this technology polished and affordable to the masses. Now the science shows us it is contributing to climate change and we have a new challenge. So it goes.