I believe it,  Hoodat. It's outrageous  that she and her husband are being subjected to the vaccine unnecessarily. Grrr.
They should get tested for antibodies prior to getting vaccinated. As of last Friday there are 71 different tests for antibodies approved by the FDA. So something should be available in your area. I plan to do that come April or May. Unnecessary is unnecessary.
My Dr. said not to be vaccinated for 3 months, but did not advise me to be vaccinated after that time. IMO, GPs appear to be so busy with their day-to-day practice that unless they have a constant flood of Covid patients, they don't have the time to keep up with the constant flow of developments in the 
Wonderful World of Covid.