According to today’s Taipei Times (“Army still trying to get its Humvee plan off the ground”) the military is interested in being able to drop vehicles from C130s.
Can anyone envision a scenario where Taiwan needs to do that, save for retaking the mainland? I thought Taiwan had renounced that kind of thing. If an island eg Kinmen is beseiged, dropping a few Humvees won’t help. And on “mainland Taiwan” there are plenty of roads - if the PLA cut every road between the western coast and the mountains, the game would be over, airdrops or not.
So perhaps they are still training to retake the mainland.