Ok I must say I’m a bit surprised. I stand corrected.
My assumption came from analogy to the 3D graphics industry where I’ve read that major studios (like Pixar) say the same thing: we don’t care about the software you use, we care about your work. And in my opinion the difference between various 3D modeling softwares is much bigger than between cameras.
But then again it might be as Don said: this isn’t a high profile job and they need someone to get on the spot and press the shutter after 5 minutes instead of an afternoon, even if the 2nd option would produce better results in the long run.