Imagine you volunteered for a very experimental trial for the greater good and then were told that you were given a placebo and now cannot receive a vaccine for several years and will have to be more cautious. You can see in the article that a volunteer from the trial is strongly advocating for giving the participants access to vaccines.
Obviously this complicates the statistical analysis (you can try to use a double-blind crossover study to get some statistical power out of this, but clearly the messaging gets more complicated), but I'm not seeing anything about a "14 day" timeline.
It's also worth noting that any study participant can just freely choose to break the study and go in and get vaccinated (lowering the measured efficacy of the vaccine)_whenever they want. Giving them a concrete date is a good alternative to that.
What conspiracy theory?
StatNews[1]:
> Pfizer and BioNTech speed up timeline for offering Covid-19 vaccine to placebo volunteers
> Pfizer and its partner BioNTech plan to offer their Covid-19 vaccine to any clinical trial volunteer who received placebo by March 1, several months earlier than initially planned.
and NPR[2]:
> Long-Term Studies Of COVID-19 Vaccines Hurt By Placebo Recipients Getting Immunized
> Tens of thousands of people who volunteered to be in studies of the Pfizer-BioNTech and Moderna COVID-19 vaccines are still participating in follow-up research. But some key questions won't be easily answered, because many people who had been in the placebo group have now opted to take the vaccine.
[1]: https://www.statnews.com/2021/01/01/pfizer-and-biontech-spee...
[2]: https://www.npr.org/sections/health-shots/2021/02/19/9691430...