I watched the video, which was impressive, up the point of booster reignition for the landing sequence. At that point, the video of the booster engines froze, and its altitude and velocity data froze, along with the event time line slowly scrolling along the bottom of the screen. I get the impression that the data link with the booster may have been completely lost.
i was disappointed that there was no video of the booster landing attempt. "We didn't have booster landing, but man, we got close," just raises the question about how "close". Did the booster come down on the ship, or miss it? If it came down on the ship, did it fall over? Did it do any damage? Was it even base end first? If it landed in the water, was it at least properly oriented and at zero velocity at the water's surface? Even if the data stream from the booster was stopped, what about video taken from the landing ship?
Anyway, good to see this much success in the first launch.
Before its first successful Falcon 9 landing, SpaceX had tried to land first stages twice on an uncrewed "drone ship" — once in January 2015, and then again in April. In those failures, the booster stage hit its target but came in a little too hard and crashed on the ship's deck. Blue Origin had first successfully landed its suborbital "New Sheppard" rocket about the same time. But landing something bigger like New Glenn is not as easy.