That's not how I interpret it. The light-speed constraint isn't just about preventing matter to move faster than light, it's about information traveling faster

That's not how I interpret it. The light-speed constraint isn't just about preventing matter to move faster than light, it's about information traveling faster than light. Picturing it like FTL communication being just an engineering problem (sorry for the exaggeration) and FTL travel being near-impossible in contrast is rather strange. Quantum entanglement doesn't allow faster-than light information transfer (though it is pretty mysterious in its own right). The sweeping beam thing doesn't either. These things aren't in any way pushing the frontier with regards to FTL communication. Do note that I hope with all my heart that I'm wrong here. We're all geeks, right.