Just read on a site or two that the speed of light is the same as that of radio (in a vacuum, etc), so considering they can probably make the shortest line possible between the two points, they probably gain a micro(or pico) second or two? Twin radio setups (or more, with TX and RX dedicated antennas) can go wicked fast, and with the advent of digital, frequency multiplexing does magic (thanks Heddy!). Add super directional antennas and ultra high frequencies, and yeah, it just might.
You can also by laser point to point internet, so if they’re chosing radio, there’s probably a reason.
