This kind of proves my superstition that it was too good to be true. I think it's fair to say it's unsafe for the risk group at this point. So who is it for? Definitely reads like a rush job and I'm not even a scientist. Needs atleast another year of study and testing.
I think maybe you've misinterpreted something: the vaccine does not appear to be unsafe for the risk group thus far.
The full data with Phase 3 is not yet fully complete or available, but that's what we really need to get a decent assessment. The early press reports were based on an initial tranche of 94 patients from the Phase 3 data indicating promising results with no
serious side effects, and Pfizer claim the rest of the data for phase 3 will be rolling in throughout the next week or two. They'll be keeping a "running total" and prep so I don't expect a final wrap-up analysis to take long. The trials document suggests a study end date of 13th December, but they could finish early.
* * *
Incidentally, Pfizer having announced >90% effectiveness, Russia promptly put out a press statement saying their Sputnik V vaccine was 92% effective against covid-19.
They could not troll harder.