For one, the common rail with pilot injection will start faster and clean up faster. It will be quieter and generate less smoke. It will also have better fuel economy, and higher torque rise.
Tractor manufacturers aren’t stupid, and neither are the engineering teams that design and develop the engines and powertrain.
Do you actually believe that 1960s technology is better than 2021 technology?
Do you live under a rock?
Have you ever operated a modern tractor or do you go by what you read from a few biased people on the internet.
Look at Branson’s website glorifying their obsolete technology. It reads like it was written by a twelve year old to anybody that’s designed engines for a living. Absolutely no technical content. Just barroom talk.