It is difficult, but once a month, they can try to make a sacrifice by driving to some other place where they can receive Holy Communion on the tongue. If it is not possible, they can do a Spiritual Holy Communion with devotion; I think these will be accepted by our Lord since it is an extraordinary case.
For example, during the persecution times or in the Soviet Times, even if it was a first Friday, it was difficult to receive Holy Communion because there were no priests available. In this case, I think our situation is similar to that of the persecution times.
Dear visitors of Gloria Dei and all who have already written or who will write a personal message to me. I am grateful for your attention, your kindness, for your spiritual support and especially for your sacrifices and prayers for me. God may reward you!