Thank you, atmosphere, for your numerous interesting and very informative posts.
Class D Hypex and UcD power module designer, Bruno Putzeys, has stated that there's no such thing as too much feedback and that he's able to make a class D amp sound however he likes but decided his goal would be accuracy.
Here are a couple interviews with Bruno Putzey about class D I thought members on this thread might find interesting, relevant and informative:
https://www.soundstageultra.com/index.php/features-menu/general-interest-interviews-menu/455-searchi...
https://www.soundandvision.com/content/bruno-putzeys-head-class-d
Tim