It's not difficult but it's not typically the highlight of the riding experience. Many people don't shift enough (some don't shift at all) and that leads to poor riding experiences. Poor riding experiences lead to bikes collecting dust in garages. Our system is certainly not for everybody but everybody who has tried it has been impressed and knows someone that could benefit from its simplicity and ability to deliver a comfortable ride. I used to design automatic transmissions for GM and the manual trans guys would make similar arguments to the one you made above. 95% of cars in the US are sold with automatics despite getting worse fuel economy and costing more. Why?