At least you can look up what 404 means and reason about what's going on. What does this change solve? I mean if you moved your site then you would issue a 301

At least you can look up what 404 means and reason about what's going on. What does this change solve? I mean if you moved your site then you would issue a 301 from the old host showing people it had moved. I don't know when exactly people make lots of different versions of the same website where it makes sense to fail over to the old one if the new one doesn't work. Baffling