Calendar email reminders are sent only to sharers with edit rights

I have a personal calendar which I share with a set of other persons. I gave edit rights to just some of them, and when I set an email reminder only those with edit rights actually receive it. I did several tries and I can consistently reproduce this behavior, is this intended or maybe due to some misconfiguration?

Iā€™m using a self-deployed 23.0.1 docker instance and the background jobs are set to cron. The calendar app version is 3.0.6.