It's not clear what combination of things has to be in place. It may be that there is a huge communication window above any reentering vehicle, and the only thing that was ever needed for continuous communications was having some satellites to talk to. On the other hand, it may be that SpaceX was barely able to pull it off only because of the size of the vehicle, the number of satellites available, and their low altitude. On the third hand, the combination of Amazon's Kuiper and Blue Origin's Jarvis might produce an even better outcome. Time will tell.