I don't think this argument is valid in this case. Think of pathfinders. The airborne commander has been in meta multiple times thanks to its ability to supplement usf tech tree. Yet, pathfinders seem to be used only in troll strategies.
Iirc pathfinders crit at 40% health or something like that meaning the opportunity to sniper models is less and USF is a faction that any problems you have arw better solved by throwing another rifle squad on the blob over diversifying your units. Why add a unit that can model snipe and little else when you can have a squad you can attack move with the rest and snare and throw grenades and and and and.... You will find any unit that uses a different tactic than brute force will fall by the way side for usf.