Thread: Shooting for "groups"

Assuming shooting for groups not for load development/ammo batch selection, but just for better groups, why not just zero the gun and aim for the target?

Take Rambo's NZHS rimfire challenge for example, there are 5 targets which the shooter should aim for and fire 5 shots at. But the 5 target roundels are not themselves part of the scoring, only the shots' groupings are measured. Essentially then, the first shot of each group is the scoring reference which the other 4 shots are measured against. To me that just wastes 1 shot for each group. What am I missing?