The time frame of this study did not include the. Of time during which Delta was completely dominant. Sample time frame of January through July will ensure that the mathematics hugely dilutes any effect of Delta.
The vast majority of that time frame would be examining the performance of the vaccines against the virus they were designed for, and largely the virus that no longer exists.
Bogus info.
Also far fewer people were vaccinated in January so even a random sample would be biased in the same direction. In other words, if only 1% of the population was vaccinated in a certain period, you could say most people who were crushed by vending machines were unvaccinated... or died in traffic accidents or shark attacks or rock climbing.
It’s frustrating because many of us only want the truth and the “experts” we rely on are playing with statistics and propaganda.