I guess your country may very well be ***ed, but let's compare this matter with a commercial one. You sell, say, airbags, and it turns out that they don't work. Many deaths, complaints from everywhere, millions in claims for compensation. Logically, you ask for an independent technical analysis.
It turns our that the product is totally useless and had no chance to work, even before production. Now you know how engineers write, their report could be "Product is not functional by design, the engineers who designed it were not trained adequately for this particular task. Test results were faked for years. Quality assurance manager is brother-in-law of sales manager.". First thing you will then do is ask the guys at the marketing dept to soften the report a little before it is made public, unless you want to go bankrupt a few months later.
Now I don't know how political processes are supposed to be in the UK. But in any case, a look at the original version of the report would be interesting.
To me it all looks a bit like a minister of health who, before entering the press conference room, 'adjusts' the Covid report established by the official medical commission (BTW this happened here too, not only in the UK). Let's not forget that it will be up to said minister and his colleagues to clean up the mess if things go haywire on the streets following an inadequately written report.