What this proves with a glaring neon sign is that vaccinations have nothing to do with 'health'. Vaccinations and masks are and always have been symbols of obedience to the State. Like a swastika was in the 1930s.
If the vaccination was intended to prevent illness and death, and you are at the clinic to die, then why would it matter? In this case Germany is using the vaccination like Catholics use 'last rights'. We are not going to kill you until you pledge loyalty and obedience to the State on your way out.