For Bumface - and others -- pretty much every week new processes are discovered which find cancers quicker, or at least predict folk likely to have a higher risk so they can be tested, even before they've detected a problem. And the early detection is key, to most of them.
More drugs are appearing, sometimes they've been developed for other illnesses but have been found to cure or at least alleviate a cancer, pretty much by accident.
Still some people will be diagnosed too late, and treatment is difficult, or only has a low chance of success, which will always be a shame.
But in general I think there is great cause for optimism. We thought Kate looked great (what a terrific outfit!) though even thinner than usual (no great surprise, given what she's going through). Lots of fingers Xed that her treatment and recovery keeps on going well.