Ukraine captures buildings for propaganda?

In the video below, a squad of Ukrainians seek to raise the flag above a destroyed town held by Russians. Assuming it is not propaganda, it's a waste of men and equipment to make such an insignificant gain. 

Ukraine can afford to waste their resources on do-nothing counterattacks or photo-ops. They need layered defense belts of trenches, minefields, pre-sighting of roads for artillery, and staged vehicles to evacuate troops in danger of being overrun. 

2000 Meters to Andriivka (full documentary) | FRONTLINE