Other mesh networks such as Eero and soon Luma support hard wiring your sattelites. I think its extremely important Netgear Orbi does the same. Especially for those of us who can.
No doubt the Orbi hardware can handle it, just a matter of how high on the list in Netgear Engineering is this feature, it is gaining traction it seem there is a lot of people in the community mentioning and wishing for it.