I've come to a Class D amp not through any intentional act, but purely though preference for the sound quality. I had tube gear for years, then moved to Naim for about 10 years. I was going to upgrade along the Naim chain until I heard Devialet. I bought a D120 about two years ago, then upgraded to a D220 Pro in December. I've never had better sound in life. Musical and accurate and emotional.
There aren't that many absolutes in the audio world. You can do SS or Tubes well or badly, and there are a lot of approaches to class D amps as well. But I would not go back to Naim or McIntosh for anything. And nobody who hears my system comments that it sounds metallic or artificial. Source quality matters, cables matter, power quality matters, and of course, we all have our own preferences in musical reproduction, But those who dismiss class D out of hand probably haven't heard a good system. Or else they just like the sound of tubes and their particular sonic signature.