Dealing with files and directories? Best option. Dealing with calling multiple other tools written in different languages and/or network calls, and combine, store and do some basic operations on the data? Best option.

It's a job control language after all.

The pipes and redirects, and the instant access to the file system is also very powerful.

Sure it could/should be improved massively, but I'd say it's still the best tool for a significant amount of pretty common use cases, it doesn't just suck at everything.