Except they always refuse to do that. We have to believe they are different in a way that Dan says he can’t remember and wont reveal when asked. It would be easy for him to prove the positive by asking his team to remind him what the difference is and stating it. Since both machines are out in vast numbers it can hardly be a secret.
How does one make axes go faster? Bigger pulleys or a higher supply voltage to the motors or lower inductance motors. I can’t think of anything else apart from software of course. And claiming software is a motion component is redefining English like you have to do to make a lot of their claims true.