-— It can be ordered into a fire zone, either as a distraction or a shield, if need be -—
Yes. It’s a remarkable engineering feat.
However, the genuine Teak desk in the CO's office, well, no one dared to question THAT.
So long as the military has lower ranks that can be ordered to perform countless menial tasks to keep them occupied, they see no need for any labor-saving devices. Got a cargo container full of items that need to be moved to storage? Why invest in a conveyor system that requires three people at most to man it and get things stowed, when you can call up a working party and do it that way.
Need something trekked that the 125-pound (or lighter) "serviceperson" can't manage on her own? That's what the rest of us big strong OTHER members are for. Stiff up, take the load, and get the job done. If that means you take up more because certain others can't, well, tough. Suck it up.
I really do not see any such machine appearing on the battlefield any time soon. Or later, even.