I mean Steve Jobs tried to treat his completely curable pancreatic cancer, which was caught early, with alternative medicine and diet changes. The guy was a genius at some things, but not everything.
You are correct, most pancreatic adenocarcinomas are rapidly fatal. He had a pancreatic neuroendocrine tumor, which is more treatable with resection and chemotherapy.
I don’t like how this comes up when Jobs is mentioned but I wanted to put a real reference here. Ignoring other factors a stage I patient is looking at 61%.