Historically, a reasonably safe vaccine has taken many years to develop. Rushing a vaccine through the system so it only takes months? Yeah, I not going to stand in line to get vaccinated.
I understand allowing reasonable time to complete trials, but let's not act like this is just a routine drug approval.
The unprecedented scale will allow more parallel efforts, to the point that the odds of a viable vaccine being available next year are much greater, but it won't speed up the minimum time.