Why various people in the FDA and Medicare should be deprived of oxygen,

because "If everyone can get it, the demand will be too much."
In 2011, the FDA approved a medical device to repair the heart using a catheter in the leg artery called the Sapien 3. The cost of the new valve is the same as cracking the chest, but has lower risks and is an easier procedure to perform. Medicare fears that more elderly patients will want their hearts repaired with this new technology, so strict coverage rules have been set in place.

For a patient to qualify for the new procedure, Medicare requires two cardiac surgeons to certify the patient cannot handle open-heart repair. A cardiothoracic surgeon and interventional cardiologist must also be present in the operating room during the procedure. This is very costly and limits procedures to large academic medical centers. The FDA has labeled the valves to require these restrictions.
Because better you have a more risky, more invasive procedure with more after-effects than get this one.  Because idiots are in charge.