If you’re changing your name and identity, don’t have a network, and can’t put any previous experience on your CV, I think that would absolutely qualify as a career restart today, even if you’re in the same broad industry and using many of the same skills.
Speaking of changing name and identity, Wikipedia doesn't have any information about her original name. It's strange that this information is missing, from a purely encyclopedic point of view. In fact, I cannot even find this information on the web.
What also struck me about that snippet of the story, is that the context for what a career meant might have been a bit different than now. A career at one single company seems like quite a rarity these days, and we wouldn't necessarily consider it to be a career restart if you're just going to another company, unless you're perhaps of a certain generation.