The goal is simple: "We do something."
Being able to state this, helps to keep all those in check who were good citizens, got their vaccine, helped to fight this whole thing and are disappointed of their fellow citizens who act counterproductively.
So this policy is not for those who refuse to get vaccinated, but to appease those who got vaccinated.
This is my personal microblog. It's filled with my fun, joy and silliness.