Yes they always make excuses for it. But you have to remember this is only what is admitted in official data.

They are doing all they can to fudge the numbers and it still looks bad. But as we saw in the Israel study, "new variant" cases are 7x more likely (after adjusting for age) than someone who has natural immunity. We are at a point now where a very large number of people have naturally seen the virus. So it stands to reasons the numbers of breakthrough cases are going to be higher than what UK government admits.