A thought triggered by Macharius' reply- Macharius will certainly make sure that everyone on the colony knows the official version of their heroic exploits. Broadcasting any recordings of his speeches about it to the ship crews is a start, but there will definitely be a live proclamation at whatever the largest temple in the colony is, together with time off to attend. Everyone should know the awesome power of the God-Emperor and the rewards of faith! It may also help them feel more secure, in that it shows Macharius (and the dynasty) is either a) favored by the Emperor or b) powerful enough to fight warp-engines and daemons and win.