Current wireless networks aren't something that give you flawless service. Often too slow and needing many attempts to reconnect. These wireless carriers can’t even stream an UltraHD video without you hitting your head on the wall in an attempt to make them stream. Not only will 5G wireless connections need better wireless routers, they need an entirely new infrastructure.
As such when it would come to connection millions of homes in an iOT intelligent grid all other wireless networks will fall short. The bandwidth is just isn’t enough for them to take on the Goliath.
And iOT interconnections could be the biggest Goliath that we will ever have to witness.