Okay in the sense that nobody really mourns their loss aside from a few and it has no material impact on our understandings of underlying phenomena. My partner's grandfather was a wizard on the abacus, my grandfather loved his slide rule, but a calculator and now smartphone can do all of that much better. Has computation been retarded due to the lost knowledge of operating the abacus? There's probably been thousands of skills that have been lost that doesn't really affect our everyday lives.