While I tend to agree with that, I would love to have a Postman/Insomia style client for SOAP. I still do some work that requires talking to (legacy-ish) enterprise applications that only do SOAP :-( On the CLI, that's just a bunch of unusable XML.
I have good experiences with the free version of SoapUI. It is branded as a test automation tool, but can also work well as a client. Just import your WSDL and it will generate requests for you.