Yes that is part of it in terms of post-arrival management. Despite all the criticism of the current construction of quarantine-specific facilities I see them as prudent provision for the medium as well as long term - albeit they should have been commisioned urgently 18 mths ago. Hotel quarantine has always been a short-term far from ideal emergency measure.
But actually I was thinking more about how the airlines are to manage unjabbed passengers for the 'complete journey' from booking to disembarkation when something like normal operations are on the horizon. The National Plan, fwiw, says 'measures may include...quarantine for high-risk inbound travel' in Phase D. Never say never but Phase D (fully open international borders with non-citizens allowed) still seems some months off, so it should not require a just in time solution. I don't know what those measures should be. A lot depends on whether 'high risk' (deserving of quarantine) will be about ports of departure (applying to whole flight) or vax status and recent travel history of each pax (harder to address).