Craig Customer and Mark Merchant don't care about the tech below the hood. All they care is that stuff just runs fine and that they don't loose money during the transaction. Compare it with cars, does the average driver care about which type of engine the car runs? Nope, they just care that it doesn't break down.
Interesting point. A crypto coin has to work, today. That's all that matters.
And being user friendly in the process. The NLG devs have at least put some work into that.