Postmortems are really great when they are done well and you have a team of sysadmins to collaborate with. As you probably know most instance operators and moderators are volunteering their time (and sometimes money) to keep these instances online. As the lemmyverse matures in age and development things will get better. In the meanwhile there will be some hiccups along the way.
When I have some extra time I plan on sharing more details about all of this. In the meanwhile check in on our chat. I’m pretty active there and can always provide additional insights on whats going on during an outage.