link?
I expect 3 things when we see it:
1: the 750 w servo is not an 80mm 2.3nm low inertia model like you find today.
2: the ball screws don't have bearings on the free ends.
3: the motor is not 1:1 on a 10 pitch screw - I don't recall Bridgeport boss's running 1500ipm.
It's also a very heavy machine of course, with ample spindle torque.
I'm also going to go out on a limb that the boss was not, uh, the best performing machine available when it was new, so probably not where you want to draw examples from
Also, sometimes designers have specific goals and pick weird parts: A brand new DMG Mori milltap 700 uses 3232 screws with a belt reduction. Great machine, but, why?!