They approached Johansson and she said no. They found another voice actor who sounds slightly similar and paid her instead.
The movie industry does this all the time.
Johansson is probably suing them so they're forced to remove the Sky voice while the lawsuit is happening.
Nothing here is shitty.
Also, they proceeded to ask her for rights just 2 days before they demoed the Sky voice. It would be pretty coincidental that they actually didn't use her voice for the training at all if they were still trying to get a sign off from her.
Like, lets be real here. This wouldn't be the first time they would be using material without the right to them and I don't expect this to change any time soon without a major overhaul of EVERYTHING IN THE COMPANY and even then it will probably only happen after lawsuits and fines.