Was it stolen or was it ransomware? the article sort of mushes the two together into one thing. did both happen?
Now I am not saying it was not stolen, it probably was, seeing as it was a third party service that was compromised. But stealing data(getting an illegal copy of it) is a very different thing than ransomware (the data may have never been copied. but access to it has been lost)
ransomware is the term usually reserved for when the data was not leaked but the owner is unable to access it anymore(unless they pay the ransom).
update: the link was changed to a much better article, so this question no longer makes sense. The data was stolen.