I think something like that could definitely serve a role in the military. From my Army days, I recall our HMMWV's (both armored and soft tops) were often simply too large, too wide, or too heavy for a lot of terrain.
Not every mission requires an up armored 1114 or even a soft top HMMWV. When I served in the Balkans, our SF detachments routinely used Mitsubishi Monteros; I suspect because they were fast, quiet, maneuverable, and relatively inconspicuous. I served in a mech infantry unit and there were many times we had to modify our routes through town because our HMMWV's were too wide to get through streets or across bridges or were too heavy for eroding mountain roads. Our Bradleys were almost never fielded because of this.
I could definitely see the US Army having a need for a small, fast, and agile 4WD vehicle. If they're going to procure Monteros, why not consider a Jeep?