It shouldn’t take two months to determine whether there are reactions to a vaccine. Two weeks maybe.
They’ve had months anyway. All the Phase 1 clinical trials for any of the frontrunner vaccine candidates finished several months ago. Phase 2 was largely complete by mid to late summer. Phase 3 has been going on for 3+ months for some of the candidates.
Tens of thousands of closely monitored volunteers are receiving the vaccines. If the FDA wants to suddenly change all the rules and further extend that, right now isn’t the time to make such a change.