By this logic, you can say that logging, metrics and tracing are all fundamentally just different kinds of data and we should be calling it just plain databases

By this logic, you can say that logging, metrics and tracing are all fundamentally just different kinds of data and we should be calling it just plain databases and CRUD. They're related, but people have a very specific idea and concept of what each is, you haven't actually provided a good argument why we should throw out these distinctions just because they somewhat resemble each other if you ignore a few details