The rates at population levels are not enough. These are rare cases and, at least partially, in groups of people who shouldn't get that ill and suddenly die
Last week, Lothar Wieler, head of Germany’s Robert Koch Institute for Infectious Diseases, said there was no evidence that patients who received the vaccine were more likely than patients of a similar age group to suffer blood conditions.
Is that guy wrong or basing the statement on outdated information?
Might be outdated, since he talks about clotting generally but the agency in charge of halting the vaccinations mentions a specific rare complication today [1]:
> accumulation of a special form of very rare cerebral vein thrombosis (sinus vein thrombosis) in connection with a deficiency of blood platelets (thrombocytopenia) and bleeding in temporal proximity to vaccinations with the COVID-19 vaccine AstraZeneca.
Perhaps really just a bad batch somehow if this particular complication wasn't observed in the UK.
There is new data, and the statement from the Paul Ehrlich Institute refers specifically to a specific type of thrombosis. The PEI is the institute responsible for vaccines, the RKI is for infectious diseases in general.
It's hard to say if this is a good decision, my impression is that this is too risk-averse given the real danger and very significant chance of COVID 19 infections. But it does seem to be based on different data than just a few days ago.