> and with few exceptions

Those few exceptions have been monumental in how they've changed cancer treatment. Skin cancer has been particularly well treated with immunotherapy, but other cancers have also benefited from the exact same research and drugs (as it turns out, the specific mutations the immunotherapies like Keytruda target express in other cancers). The reason skin cancer gets so much attention is because it's one of the most commonly diagnosed and treated cancers. (Colon is more common, I believe, but it often doesn't get detected. Get your colonoscopies folks).

It has moved fast enough that I've heard from multiple oncologists that the all 5 year survivability numbers are dated because the treatments are newer than the studies.

We've come a LONG way in a very short period in terms of cancer treatment. It still sucks, but not as much as it once did.