Because I absolutely refuse to use that perk. I like to counter UAV's in more efficient ways such as choosing a rocket launcher and instead of ghost, I'll put on flak jacket. This way I can gain points for shooting down uav's, stay hidden, and gain explosive resistance while retaining the ability to use the rocket launcher as anti infantry. I also plan to roll with a party quite often so I can count on them to not let the enemy get any sort of uav spam.
PSN: xFinland(SP games)/l-r3flex-l(MP games) oh sheesh y'all, 'twas a dream!