Probably just finishing off a few studes - end of course or mid-course checks. If you manage the risk, it would be mad to not take a couple of trips to finish someone’s course if you had to take a 1-2 month pause in training. Flying training is all about continuity in phases, so if someone is near an end state, let them finish that phase rather than having to start again in a few weeks time. I would be worried if we saw normal rates of activity, but that is not what you are seeing here.
Don’t forget these are some of the fittest people in the country too - studes and instructors, so the risk of death from COVID-19 is low if sensible precautions are taken in a controlled environment.