Go around with a shallow turn to the right would have been the best option, however I would not expect that from a 19hr solo student.
Let me play devil's advocate for a minute here;
For obvious reasons gliders have right of way and he landed on the east side of runway 04 according to the report.
Now, had a look at Google Earth, he could have landed on the shorter grass strip leading to the hangar in the middle.
Where was the student's instructor? Did he have a handheld radio ?
Could he have warned the student?
What is somewhat bothersome is that nobody seemed to have seen each other.