One obvious answer is that people probably don’t want to write a whole parser and wire up new steps in their build pipeline just to do something simple like get

One obvious answer is that people probably don’t want to write a whole parser and wire up new steps in their build pipeline just to do something simple like get the name of enum cases as a string. Without taking a stance on whether in-language meta programming facilities are good or bad, it’s not hard to find examples of cases where people find it useful to have them.