In the end the machine used doesn't matter near as much as the person guiding it. I started with a jamb peg machine, as I couldaford little else, my means were meager and I thought it better to hone my eye and hand skills, as well as gain appreciation for the efforts of those faceters that had been producing beautiful cuts for hundreds of years before me.
Is the Hope Diamond native cut? No, nor is it precision cut, but it is a beautiful stone nonetheless. There are many other notable stones that fit in this category, and they were all cut using what we might call inferior machines, but the skill of the operator more than compensated for it.
Most of us that do cut, have seen remarkable skill presented in native cutting, we have also seen the worst from precision machinery, it's not nearly as dependant on the tools as it is the person behind the tools. We should give credit where it's due, circumstances, laws, means, and honor all impact the native cutter's innate ability to produce beauty. The fact that they can do so in the worst of conditions, when the nearest electical outlet is 200 km and 2 days away... still amazes me.