I have an electric motorcycle (Zero FX) and a borderline ebike (Sur-ron X). Honestly military use cases are probably great for them.
They're super quiet, they can be laid down on their sides without any fluids leaking out, you can charge them without crazy charging infrastructure. I have charged mine with a large solar blanket before! Swapping batteries is pretty quick, but honestly when I spend a day in the woods with either, I'm worn out before the battery is.
Range anxiety is real for serious highway miles, however for scouting where you have even 1 proper truck to strap it to for distance travel, I could see a very real benefit to having a couple of these available for fast, offroad, short-range mobility use.