Recent reports indicate that the reason it's getting FDA approval so soon is not because of any specific scientific evidence or the standard FDA process, but instead it's being approved early as a deliberate political tactic to undermine this argument used by people who don't trust the vaccines: https://www.politico.com/news/2021/08/04/fda-approval-pfizer...

I don't think it's the "anti-vax camp" who's behind the major shifting of the goalposts here.