Yes, I very much doubt that is the reason for the refusals, they must have had a hunt to find anyone to say that. I do have some sympathy with the difficulties people face. Do you take the Pfizer, knowing that you are effectively in a clinical trial, as Pfizer don't recommend more than a three week delay for the second one, for the 90% protection offered, or do you take the AstraZeneca vaccine, which only gives 70%, but the 12 week delay doesn't seem to be so much of a worry.
I think I will take which ever is offered first, but I will take a photo of the phial, I don't want to be given a different one 12 weeks later.
And I do worry about the 12 week delay allowing the virus to mutate and become vaccine resistant.