As far as I understand it that's its main purpose.
Are you aware of the works of
Bruno Putzeys for various audio companies over the last decades? He's been responsible for groundbreaking developments, in particular in the field of class D amplifiers. He's the inventor of the UcD modules (when working for Philips), the Ncore architecture (when working for Hypex) and currently the Eigentakt modules (as the co-founder and CTO of
Purifi). His fellow CTO at purif is Lars Risbo, the inventor of the first ever digitally controlled class D amplifier, the TacT Millennium. Putzeys published works include research on how digitally controlled class D amplifiers could benefit from feedback in the digital domain (and I'm sure Axign are more than just aware of this).
So, Purifi's development is technically led by the two most influential developers in this field, but they decided to not follow this route any further, but to fully concentrate on anaogue input class D amplifiers instead. If these two leading heads agree on that digitally controlled class D amps are a dead end, I tend to follow their judgement. Keeping the signal in the digital domain all the way to the power stage sounds logical (and admittedly my main Lyngdorf system is based on this technology) but that doesn't mean it's the only or even the best way to do it.
Finally, it's the result that matters, not ideology. WiiM are sticking to TI TPA325x chips so far (and yes, Lars Risbo did work for Texas Instruments when they bought his company Toccata Technology) for a reason. Just switching to anything using digital input and digital feedback does not mean the results are any better.