Class AB and D are comparable only when considering subwoofer
frequencies. If you're talking about full spectrum, then the price of
Class D rises very steeply to achieve even moderately good quality.

Class D circuits introduce a time delay that makes high frequency
negative feedback difficult, or even impossible. The inductive or
capacitive load of a tweeter becomes a real problem.

No one's talking about using a class D amp that's designed for subwoofer use
to play the entire spectrum. That would be akin to talking about using an
amp, that is designed to be run at 4 ohms bridged, to run a half ohm load
instead. It's called misuse.