If employers understand that there is a digital check system, it would be a step forward. The people answering the checks are not infallible. The system is very complicated. If the wrong advice is given, there is no way for an employer to check that.
Another aspect I have come across in advising employers is that they cannot determine whether documents are genuine. A digitalised check does not address that properly. Employers find that, notwithstanding having conducted checks, they have unwittingly employed somebody with a document that looks fine when it is checked digitally but that is not fine. The employer then faces criminal sanctions as a result. That is happening to people.