The article says as much. The takeaway isn't that bone-marrow transplants should replace today's standard courses of treatment, but rather the fact that there's been a second instance of such a cure means that there's hopefully some signal here that can eventually be leveraged in finding a more workable cure
[1] suggests he still got the fun host-versus-graft-disease, so it seems like he might still have had that nasty rollercoaster, unless you meant some other nearly-killed-the-patient.
I think so. I'm cynical, and might wonder whether it's truly possible to eradicate such a reservoir. Seeing a couple examples that prove my intuition wrong is very powerful.