Earlier quoted context omitted.
Those facts , as you put it, really mean nothing other than maybe someone should do a study and see if there's any real correlation. How many other people had cancer, used plenty of cannabis, then died or continued to have cancer? There's billions of people in the world. That means the frequency of "Bad thing, Weird thing, Good thing" will often be nonzero for all sorts of things.
You should listen what people have to say when they describe it as a "Love Bomb", as "Seeing God", etc -- sometimes a little less quantifying can go very far in resolving problems physical or otherwise; the trick is experience and an open mind. The testimonials describing these substances as powerful healing tools is endless -- there is validity in this fact.
Until or unless there is actually a quantifiable effect it is not a fact that they can be said to heal anything.