Second guessing what might have happened is pointless. Wait for the report. Stuff happens, as in,
Young lass was backtracking for take-off to do some solo consolidation when an aircraft, which had only just taken off for a distant destination, suddenly appeared on finals. Unable to establish comms, and with its apparent intent on landing, she took to the bush.
The reason
Pilot was on approach freq rather than the required circuit freq due to having his hands full with a recalcitrant airframe, a desire to maintain comms with an agency that may be in a position to offer aid, and wanting to get on the ground ASAP.
Doesn't always go by the book. Keep the eyes open.