For me, as long as I can easily open with one hand I'm happy. No, not for weaponish reasons, but when you've got work to do, sometimes it's just inconvenient to have to use 2 hands. Got lots of knives, but only a few that I like to carry for exactly that reason.One-hand-opening lockback knives have only been common over about the last ten years or so. Also one-hand closing. My Camillus is so solidly made, I have to use two hands to close it. But for its intended purpose, that's no problem for me.
A fixed-blade knife like the Arclite would be great for the troops, because they probably hang their HHD knives somewhere on the outside, anyway. But when they get home, the HHD can continue to live in pockets, while the Arclite would most likely be put away in a drawer.
Still, it would serve the purpose in the field... and they'd still have the keepsake value on returning home. Might not be quite as utilitarian at home but some of 'em would find use for 'em occasionally. I hate that the CRKT seems out now. Really nice deal we had there. :-)