The existence of Hard Wired does not mean that the VSAT has no counters. It means that the counters to VSAT themselves have counters. This is a substantial difference. Considering I need to forego either Toughness or Scavenger to run Hard Wired (or, worse, use Greed, requiring foregoing two slots) I think it's fair to say that the cost of making my VSAT "uncounterable" is fairly steep, to the point that it is at best a fair trade.
Additionally, the entire team would need to be running Hard Wired to make a Counter-UAV or EMP "useless." Don't know how often that happens, but I'd be happy to run into a full team using neither Toughness or Scavenger just to squeeze a little more value out of a scorestreak that already requires 1200 points.
"But we, who name ourselves its sovereigns--we, Half dust, half deity, alike unfit to sink or to soar."
How about they bring back decoy grenades. That way the VSAT will still work as intended and the other team will have a small chance to distract them, Maybe even let the decoys work against the hunter killer if thrown close enough to it.