Is it just me, or was that massive double standards on the part of the Doctor there? Oh, the gangers are just as good as real people, we can't blow them up, and Doctor!ganger is equally valid as Doctor!Doctor, but Amy!ganger? Nooo, she must be meltified immediately!
...I'm not really going anywhere with this, it just jarred a bit. But then, I preferred the episode with pirates anyway. Arrrrr.