I had done a SQL-like ->Bash "language," and the reason was that I wanted to have access to CLI tools as-is, in my case, curl programs. Had I chosen Python as a target, I'd have to use requests/urllib, which would be much more verbose.

The same applies if one needs awk, sed, etc... The constructs are just there.

Also the fact that you can just pipe to bash, makes development much easier.