Look at how Bash scripts are used. You can hack together something quick with them, but at the time you want to do something harder or better people end up using a language like Python or Perl.
Now look at what happens on Windows. Devops can use PowerShell to hack together something quickly, but if they want to do something more complex you have the option to easily add new PowerShell commands and data types because it's all based on .NET so you can pull in any .NET code you want, whether that's something you write yourself or from an existing library.
You could do the same with Bash, but people don't do as often, I would suggest this is because it would tend to rely on plain text and regular expressions, and programmers tend to prefer using better specified data types.
