Hey, when you are faking everything it's really tough to make all of your fakes consistent. How can you expect it to look the same when they have the luxury of not including people in one, but have to make it work with people in another? Give them a break, they are trying to minimize how much of their budget they spend on CGI and such.

It's ok though, most people want to believe so their minds will do the necessary gymnastics to protect NASA and their world view.