There is no way to provide wf params when we create cron-trigger

Among the "cron-trigger-create" parameters:
usage: mistral cron-trigger-create [-h]
                                   [-f {html,json,shell,table,value,yaml}]
                                   [-c COLUMN] [--max-width <integer>]
                                   [--prefix PREFIX] [--pattern <* * * * *>]
                                   [--first-time <YYYY-MM-DD HH:MM>]
                                   [--count <integer>]
                                   name workflow_name [workflow_input]

Create new trigger.

positional arguments:
  name Cron trigger name
  workflow_name Workflow name
  workflow_input Workflow input

optional arguments:
  -h, --help show this help message and exit
  --pattern <* * * * *>
                        Cron trigger pattern
  --first-time <YYYY-MM-DD HH:MM>
                        Date and time of the first execution
  --count <integer> Number of wanted executions

there is no 'wf_params'. So user can't run reverse workflow.