> Does postman do anything curl doesn’t?

Yes! It's supports functional BDD-style tests, "mock servers" (really "fake" servers), a walled garden for saving and sharing data (to frustrate engineering managers and ops folks), perf tests (soon? now?), contract testing, and more. Did I mention that it's a GUI tool, so it must be "easier?"

They're trying to become a one-stop-shop for dumbing down web dev. Ideally, inside the walled garden. That has a certain appeal to management.