You say all that then still land on the same problematic viewpoint:
> a doctor's successful intervention and the divine cause that enables it
For religious people there is always the single factor, and it's always a bit insulting when they remind you they view the world this way.
> For religious people there is always the single factor
I'm a religious person. I both agree that I'm here because of my own choices and the choices of those around me, which were highly influenced by an uncountable of chance events that led to those decisions being made at that time and place.
And at the same time, I choose to point to God that what has happened is what has happened.
I do agree, there are those who do make it seem like only God did this thing, as if any rando person could have done that surgery or what have you. But saying "for religious people..." is being overly reductive IMO.
A mature religious belief knows that the god that created the doctor also created the cancer.
As humans were more likely to celebrate the God who provides the cure more so than the God who creates the disease.