I think they 1000% did, because despite all the fuss there is actually no resemblance between the Sky voice and Scarlett Johansson's. The Sky voice is in a different pitch, doesn't have the vocal fry, doesn't have the slightly nasal tone. Listen for yourself[1].
This was a marketing coup for both OpenAI and Johannson. OpenAI, because they're in no danger of a negative judgment, Johansson because she gets her name all the place in the press and drums up free publicity for her film.
[1] https://www.reddit.com/r/singularity/comments/1cx1np4/voice_...
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.
Cynical.