OK, say it does. But give it a few years for the technology to propagate, and all traders will have the same latency, eliminating any advantage it once had. So not really revolutionary in the big picture for that case.
Lets say your application needs <50ms latency, low enough that your users can't notice. Today, you'll something around 10 datacenters in the USA/Canada to achieve this.
If cut that down by 31%, you might only need 6. (or less, this would take some real math to figure out).
But the impact is pretty large in the long run, if it can really cut long haul latencies by 31%.
Still not the case. The state-of-the-art networking technologies are expensive (300K+/yr per data center plus inter-facility connectivity running into the 1-5M/yr range)