In the end, denying a unit its shitty armour save is still better than them getting it. If a unit has a +6 save and suffers 6 wounds, theres a chance that it saves 1 and only takes 5. When it doesn't have that shitty save, your getting the full 6.Their powerweapons won't be that great considering Nids have crap armour anyway,
yea but instead of denything them their save you could be causing more wounds (Scorpians are genraly used to counter hordes due to their higher strength value and lack of power weapons)In the end, denying a unit its shitty armour save is still better than them getting it. If a unit has a +6 save and suffers 6 wounds, theres a chance that it saves 1 and only takes 5. When it doesn't have that shitty save, your getting the full 6.
Fewer saves still means more wounds once you do wound, doesn't matter if you denied a +2 save or a +5.