Bash might be better than IE. But I think we can agree that it is no longer a good shell.
Its syntax is awful, and lacks many features that other shells have.
It is only so widely used because it is a de facto standard. If bash was created today, barely no one would us it.
If you don’t understand the “problem” part in the “what problem does this tool fix?” Then you probably don’t need that tool. You should probably try the program they mentioned that didn’t fix their specific problem. Since that program probably has way more users and a more entry-level documentation.