Is the 120mm mortar in the scenario Alone intentional?

[Wolfgang]

I was wondering about this.
Alone (modern war) is a smaller map where the americans are deployed in a 6 hex outpost. In the outpost is a 120mm mortar and crew. The min. range on that is such that only a narrow band of the map is available for targetting.

Is that by design? Historical accuracy? A way to weight victory points? Or is it an oversight? Seems like a smaller caliber mortar would be more useful as opfor starts within the min range of this weapon and thus its not used in the scenario.