So, I have seen the data. I HAVE the data. The sole contraindication is "hypersensitivity"; i.e., an allergic reaction (applies to previous vaccines, as defined by anaphylaxis). We can kinda tell who will (have an "allergic reaction") based on history, but no one has any history until their first time. Also based on the numbers in the clinical trials, the 'n' is so small I do not know if it is really and truly an contraindication. What, fewer than 10 out of >50,000? And then, what's an "allergic reaction"? Anaphylaxis? Hives? Sniffles? For us, the contraindication would be anaphylaxis.
I see both sides. Us, we'll probably tell people "if you had a reaction to any other vaccine, do not get the Pfizer vaccine."