See here

As you can see, it recommends hab-sup, while hab sup is the actual command.
I think this is a side effect if the fact that hab and hab-sup are separate binaries. We're currently investigating the possibility of merging them into a single binary, which should remove this (admittedly confusing) issue.
It may be possible to provide some kind of override to the underlying library we use for CLI parsing, which is ultimately where this message is coming from.
Thanks for reporting this.
I think merging hab and hab sup is a great idea, thanks for the kind report :)
This is fixed:
➤ sudo hab run --help
hab-sup-run
Run the Habitat Supervisor
USAGE:
hab sup run [FLAGS] [OPTIONS] [--] [PKG_IDENT_OR_ARTIFACT]
…