This view is not for custom XS jobs at all.
Instead it provides the status of SAP HANA internal jobs.
So for larger operations, e.g. merging a table SAP HANA can internally put the different steps of that operation into a "job" API, which will then take over the control over the execution of this job.
Having said that, the view you refer to is to provide the admin some insight into the current status of these jobs.