Another poster wrote: every DD I have heard sounds thin, lacking body, are grainy or have a grey wash through the sound, possibly due to error correction servos.
Seemingly these DDs were not good examples of the technology ie made to a price, as the majority of cutting lathes were/are DIRECT DRIVE.
If you are going to bash DD you have to throw out the DD cutting lathes and drive them with a rubber band.
What you fail to understand is that most cutting lathes have a 70-80lb flywheel and significantly more drive power than most domestic direct drives. - even the Kenwood, Technics & Victor. The dynamics of a cutting lathe and its requirements are quite different to the dynamics of replaying a record.
And you appear unable to comprehend that critiquing specific examples of direct drive does not mean that direct drive is in of itself a bad thing.