It's an interesting article, but not very factual.
CPR can be performed quite correctly without necessitating the breaking of ribs, as an example.
My Father-in-law, Bill's Dad, was a very well known Doctor and had brain cancer. He went for all the treatments, which gave him a huge surge in quality of life that lasted several months, his decline after that was gradual and that gave him lots of time to spend with his large family, which is what he loved (as opposed to 'Torch' who didn't, other than pills and had about 4 months).
Doctors are as individual as well, anyone else.