I suspect they are being very careful with what they announce to minimise the risk to their brand, but not realising that there will be a lot of people who will get the emails who are wise enough to dig deeper into not just what was said, but also what wasn't said. This is especially so if the list of those affected is some / all of Elite / Gold / Silver.
The fact that there were two staff accounts breached raises a lot of questions.
I'm a silver (ex-Elite / Gold) and I got the email.
For Jade people, have they ever shared a PNR / received a gifted APD / RU / been on a gifting register or anything similar to link them to an Elite / Gold / Silver?