Allen&Heath produced already plenty of incompatible proprietary Ethernet Standards, Dante is only one more proprietary Standard added (obviously holding the monopoly currently). We have seen 10+ proprietary Ethernet Standards rise and fade already.
Imagine the advantages if they had used the only Standard produced by the makers of Ethernet itself, the IEEE. AVB is only backed by a few companies, but all of them are 100% behind it. And it’s open. And now that it’s improved as TSN for the factories, it will be ubiquitous soon.