What technologies are you referring to and what year were they implemented?
Hmm, where to start? Well..
First, lets not put a motor right near the tonearm, rigidly attached to a hollow plinth.
Second, lets not put the motor right under the platter, necessitating a hollow box around and everything else that resonantes.
Third, heck, lets isolate the motor entirely from the platter bearing/arm! Good idea, why didn't we think of it sooner?
Fourth. Lets use simple physics like inertia and mass instead of correcting the things that go wrong when you don't with a bunch of ICs and other electronic gizmos that do nothing but once again, lead to a system that's harder to kill vibration and resonance in. Because, you know, a skeletal frame doesn't vibrate because its not there to vibrate, or a solid, mass-damped, system absorbs its own vibration. A hollow shell doesn't.
Fifth, lets pay more attention to arm resonance than we used to. Heck, lets make straight, light, rigid arms. Yeah, they were doing this...but today's arms are way better than much of the mass market ones of yore.
Lets pay more attention to bearings! Maybe even use magnetic or air bearings. Or the strange but ingenious 3-point bearing the WTRP. Some of these ideas are old as well, but they were in high-end tables.
So what do we have? We have an entire turntable industry now that gets to focus on nothing but refining the turning of a record and reading the grooves. Instead of pleasing the most people with convenience and not "looking strange so I won't buy it", instead of making something easily repeatable in manufacturing over 100,000 units. Instead of sticking to tradition because out of the box thinking doesn't sell. Instead of thinking that everything that has been is the best it ever is going to be.
But its all just silly to type when all you have to do is listen. But you have to be willing to do that.
Ok, enough feeding the troll. Off to work on a Sunday. Coffee!!!!