Unix's developers just didn't grok usability. At all. As a result, Unix is very sensitive to even small mistakes. It's like the OS was not intended to be operated by humans, with faulty memories and clumsy fingers.
VMS, on the other hand, was much more tolerant of drunk users, or just tired sysadmins who haven't had enough coffee. These considerations were baked in from the start, resulting in a far more robust command line environment.
Unix's developers just didn't grok usability. At all. As a result, Unix is very sensitive to even small mistakes. It's like the OS was not intended to be operated by humans, with faulty memories and clumsy fingers.
VMS, on the other hand, was much more tolerant of drunk users, or just tired sysadmins who haven't had enough coffee. These considerations were baked in from the start, resulting in a far more robust command line environment.