Not to down play StarLink, but actually... this amazing impressive reliable video stream is capable from any orbiting satelite. What's different here is that Starship is so massively huge, something like several meters in diameter, like maybe 7~9 meters, or something like that. Anyhoo, that the interference from the plasma envelope... does not fully envelope the whole rocket. There is a bunch of surface on the backside of the rocket not subject to the plasma, which is something liek fire made of electrons stripped from their atomic nuclus, and so causes elctromagnetic effects. Since the plasma doesn't go all around, any satelite can communicate, not just Starlink.