It only heals a good 1700 more than it does now, and takes longer to fill its heal payload.. if it was a flat out +5k instant heal it'd be a lot more useful.
Do soldiers even use survival anymore? I havent heard Sterva complain about the extra survivability of solitus bureaucrats due to it either, nor Alcoydel comment on how NM is crap compared to Solitus due to this perk either.