The idea that vaccines provide more antibodies that fight a wider variety of COVID can indeed suggest that vaccines create better immunity. The writer here make

The idea that vaccines provide more antibodies that fight a wider variety of COVID can indeed suggest that vaccines create better immunity. The writer here makes a firm denial of this and then uses their denial to offer a fatalistic take on what is possible to show about vaccines with this paper. Of course, outside of this paper there are very simple studies that have been conducted which contradict the bias illustrated here.