I might be wrong here (for a lack of in-depth knowledge) but isn't the full-body motion of the cubsat (for aiming) and the ARQ protocol the real development her

I might be wrong here (for a lack of in-depth knowledge) but isn't the full-body motion of the cubsat (for aiming) and the ARQ protocol the real development here? I know the laser links themselves might not be new, and while it hasn't been done like this, we knew that it would be possible considering we've done a ton of variants (sat-to-sat, station-to-station, over fiber, over glass, in open air, in a vacuum), even just hitting the beacons on the moon and measuring the reflection somewhat shows that long-distance links could be done. Maybe the new-ness in the laser aspect is the small satellite and energy package compared to high-powered lasers you might expect?