A guy with dual SMGs and a lot hp is a lot less cheap than a lvl 20 uninterruptible, endless repertoire mage with a lot a of hp.
As awesome as the G22 guys standing by/sitting on the ships rails cheering Sis on (and occasionally shouting "Larry! NOOO!" if you accidentally hit one of them) would've been, it wouldn't have made much sense now, would it? These aren't knight mano-a-mano duels, these are fights against ruthless intelligence agents/terrorists/etc.
Also, adapt people, adapt.