Functionality or wording issue - ludus power command

The command ludus power returns the following:

ludus power
Control the power state of range VMs

Usage:
  ludus power [command]

Available Commands:
  off         Power off all range VMs
  on          Power on all range VMs

The "available commands" implies that just adding off will turn of all the VMs in the range. But when used in such a way:

ludus power off
Error: required flag(s) "name" not set
Usage:
  ludus power off [flags]

Flags:
  -h, --help          help for off
  -n, --name string   A VM name (JS-win10-21h2-enterprise-x64-1) or names separated by commas or 'all'

I assume it's a mistake in the writing, so no rush.