I think the DWP might think differently, that's all. I am not saying they are right, but I can see that they might occasionally need to see that a person exists.I don't see how any of them have to be face to face unless the client wants it.
If it can take three hours to get to and from a job centre just so you can show them your proof of looking for work, them IME that's a massive waste of time for everyone. If the DWP just left people alone to look for work, it would be a lot less stressful for the the claimants and would cost the DWP a lot less.
Oh, that's all very true, definitely. But the DWP (which I still somehow have time-warps about and think of as the old "Department of Stealth & Total Obscurity"), is likely to take a different view.