Seems like it's been that way for a while...

Transplant candidates must also receive the seasonal influenza and hepatitis B vaccines, follow other healthy behaviors, and demonstrate they can commit to taking the required medications following transplant.

Nevermind you trying to misrepresent the subject by saying it's a flu vaccine.

Why sentence somebody that wants to live to die ( by denying them a transplant ) so that the organ can be wasted on somebody making choices inconsistent with survival.

All transplants have waiting lists. Getting an organ probably means denying one to somebody else.

The headline should be “Idiot sacrifices their life opening a spot for somebody smarter to live”.

Since getting the flu will probably kill you with all the immunosuppressants you have to take for life in order to not reject the transplant. They didn't want to waste the organ on an idiot who can't follow simple rules when someone who wants to live could use it

Not vaccinating against an infection puts you at dramatically increased risk of poor outcomes. When deciding who gets a lifesaving organ, you have to consider chance of success and the chance that person can follow through with the rigorous regimen for successful outcome. This is the same reason drug users are denied organs. This is nothing unusual or unethical. She can choose not to get vaccinated, and doctors will choose a more suitable recipient for the organ.

Organ transplant recipients have a weakened immune system for months to years afterwards, in large part due to immune suppressants taken to prevent organ rejection.

That does not go well with being unvaccinated in a pandemic. The vaccination gives you a fighting chance even with weakened immune system, but without you're screwed.

When a life saving transplant you need has prerequisites and you refuse to meet them, you have refused the life saving transplant.

Simple enough?

There is a very limited supply of organs. They need to give them to people who have the best chance of success and longevity.