The lunar hypergate that was destroyed 15 years ago during Heaven's Fall was said to strand the Vers Knights on the Earth Orbit.
It is improbable that there are no unmanned ships ferrying supplies to the Vers homeworld (Mars) and parting from the Vers foundries to the frontline (Earth orbit).
But given the scale of space technology, it is not unthinkable that some people (commoners) would not travel several months to get from Earth orbit to Vers (Mars).
That the nobles of Vers think themselves as stranded on the orbit because they would not submit themselves to this arduous trip, OK.
But do people still travel to and from Vers after Heaven's Fall? Is there some reference from the canon material?