A shell script can be much more agile, potent, and concise, depending on the use case.
E.g. if you want to make a facade (wrapper) around a program, that's much cleaner in $SHELL. All you're doing is checking which keyword/command the user wanted, and then executing the commands associated with what you want to achieve, like maybe displaying a notification and updating a global environment variable or something.
Executing a bunch of commands and chaining their output together in python is surely much more cumbersome than just typing them out next to each other separated by a pipe character. It's higher-level. 👍
If it's just text in text out though, sure, mostly equivalent, but for me this is rarely the use case for a script.