There may be not much of universal objectivity in comparing different amplifiers. The tastes are different . Most people like 8 cylinder pickups. I don't like them independently of their price and the gasoline they require. I prefer a light sport car. If an "American meat and potato" translates to an 8-cylinder pickup, I am not sure if I will like Atmosphere class d. In fact I am not impressed with Pass labs stuff, it's again matter of a taste. If you want to drink water and instead you are given a very good prepared tasty lemonade, you would not like to drink it. I don't like lemonade and Coca-Cola-like drinks although most people do like them (by the way if you want a cheap version of a Pass amplifier, try Nuprime stuff, e.g. ST-10 class d amplifier). I'm so glad I was able to repair my Cherry Megaschino class d amplifier. I can now drink a pure good quality water. Tommy would have been very happy to hear this.
Kuribo, your judgement may come from some objective data, this may make sense. To be more convincing you may go a bit deeper into the design basis of some GAN amplifiers, e.g , those of Atmosphere. Of course it would be important to compare them by yourself with Purifi etc. (By the way, what you would say about the former amplifiers if they were five times cheaper?) In fact, i own LSA GaN Voyager for already some months and keep it on a shelf unplugged. I am disappointed not only with its sonic properties but also with a terrible service i experienced.