You're blaming the language for the bad coding practices of the developers. You can build maintainable database code, and modern SQL IDEs like Datagrip provide

You're blaming the language for the bad coding practices of the developers. You can build maintainable database code, and modern SQL IDEs like Datagrip provide similar tools for SQL like you have for other languages, e.g., refactoring, dependency/usage info, versioning, etc. The downsides you mention are not inherent to SQL.