Why is exporting a schedule in iCal format a secret?

Grafana OnCall / Schedule

Could someone explain the purpose why exporting a schedule in iCal format is a secret?
Why is this documented so poorly?
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Secret iCal export link to export schedule’s on call shifts to Google Calendar, iCal, etc. If you forget it, you’ll need to revoke this link and create another one.
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What happens if the admin creates a new link. Are the old ones not valid any longer?
I would like any user to get simple access to the WHOLE schedule he belongs to in iCal format without going through all these hoops?
Please show one “public” ical link on the schedule page that each user with access can copy and link into his favorite calendar app. The link should not expire nor should it stop working or relies on an admin to generate.

you need to log an issue on github, not here for feature requests