I concur.
I grabbed a THX 789 from the leftovers of the first release (around Nov 2018). My review at Drop compared it to a sandblaster. The ultra-clean amp profile strips away the unity and ‘skin’ from audio. So, one focuses on the muscles, bones, and organs at the expense of perceiving the whole. One is required to literally fetishize small details that were never intended to be the focus of the musical production. This is not unlike the difference between medical photography (or niche k i n k y p o r n) versus artistic human images and portraits. “Oh, look at the skeleton on that woman! Look at those blood vessels! Look at her spleen! Look at her intestines!”
With an ultra-technical amp one can hear: Hot mics - check. Room noise - check. Breathing - check. Slight volume fluctuations - check.
What about the lyrics? What about the feel? What about the tone? These are all better communicated in an integrated fashion by a non-fetishized amp.