One should not confuse the performance of this cheap after-thought converter (mainly meant to solve a secondary last minute problem or to allow easy and headacke-free sound distribution on some remote area) and the performance capability of the Dante system as a whole.
Most big sound enforcement events worldwide are based on Dante nowadays.
Make no mistake: Huge amount of IOs, easily sharing signal for multiple simultaneous purposes (FOH, monitors, broadcast, recording,...) :
Ethernet-distributed sound is a revolution.
I personnaly use it for more than 10 years to distribute sound betwern Mixer, preamps, effects and PC(s). (I'm not pro, though)
This system is simply great.
Now, those cheap adapters are speced as we see here: 0.01% THD is not what we're looking for here, for sure.
For sure, we whish they set a target to cover at least 16 bits.
Use a serious DAC behind an Dante-to-AES converter though, and you'll get all the performance it's capable of, for sure.