> The Sky voice is in a different pitch, doesn't have the vocal fry, doesn't have the slightly nasal tone.

In the sample you linked to you're correct, but in this sample the vocal fry is present and in fact quite pronounced:

https://m.youtube.com/watch?v=vgYi3Wr7v_g

I can't hear the nasal tone in either voice, but the video linked above sounds much closer to Johansson's than the sample the reddit poster chose. It's definitely not a home run, though.