Reliability & infrastructure
It's a great idea to get high speed data everywhere in a room; however this requires an infrastructure to be put in place. Think how long it's taking to replace incandescent lamps with LED ones, and all the trouble with dimmers, for example. Then there is the reliability aspect. We expect hard-wired stuff to last decades. I put in two power sockets with built-in USB chargers. They lasted a year and I had to take them out.
So, it's more likely this initially will find an application in a new building construction which needs this capability, not consumer but industrial.
What problem does it solve? Individual video streaming to portable applicances in a space?
Does it reduce building wiring? It would certainly make shop floor reconfiguration a bit easier, but still power is needed, so network cabling in parallel is not too much more of a burden.
There's a problem waiting to be solved out there, but I've not figured it out yet.