To be fair, by the time the vaccination teams post back the forms with who has been resulted, the post has been delivered, sorted by the mail room, delivered to the correct team, sorted by geographical location, results validated and then entered into the 'system', it can take a while.
I love the way it looks like they only thought about IT requirements when it was time to do the vaccination. They did a good job developing the Covid App and I struggle to see how setting up what is basically a reporting database is more complicated than that.