Congress bills will create in "global rationing" board on Medicare which will fix the amount to be spent for all procedures starting in 2019. The Board will choose how much to pay for each procedure. (Until then, it will only change Medicare Advantage and prescription drug plan.)
The Wall Street Journal article was against such rationing. They pointed out that the Washington board does the same thing and has elimited knee arthroscopy and is set to ban knee replacements and MRI's for cancer.
The alternative to a rationing board is sortitioning juries and to prevent the agony of rationing, they should not make the decision until after the care is rendered.