In this case, the format of the documentation provided by HMRC is legally important. gov.uk's remit isn't to get the law changed, it's to improve digital servic

In this case, the format of the documentation provided by HMRC is legally important. gov.uk's remit isn't to get the law changed, it's to improve digital services wherever possible - and in this case, all they can really do is integrate it into the existing site.