Glancing though the report you linked, it says 55-70% reduction in symptomatic disease after 1 dose and more after 2. Higher effectiveness against severe disease, hospitalisation and death. For delta, they quote a 10-15% drop of effectiveness after two/one doses respectively. That seems in line with the “official” line and different to your numbers? Or am I reading you wrong?

Another nugget in there is that something like 95-97 of the population has Covid antibodies, from either disease or vaccination. I’m surprised actually that is is going as strong as it is still. I know antibodies are no silver bullet, but that means that a huge proportion of the country has either been sick already or had a vaccine recently. That seems as good as it can be for a “herd immunity” case, and yet infections are high. Hmm...