It seems that the issue was resolved behind closed doors, so it could have been resolved behind closed doors to begin with, and then if the defederation was to go ahead simply announce the defederation.
Making an announcement "it will be defederated in 48 hours" made for this weird countdown drama thread (we even had programming.dev people show up and be sad about defederation!) that didn't really go anywhere, and then y'all just locked it when we refederated and made it clear that you were never interested in input and you'll be running the instance as you please (which is well within your rights of course). So what was the point of the thread?
I can see how it is nice to have warning if a community you're involved in is going to be defederated, but it also drags drama to our nice little corner of the fediverse, and pins it at the top of our feeds for all to see. In fact it shows up as the top of every feed for me, Local, All, and Subscribed. I can't get away from it.
Every time these threads show up they end up blowing up. Honestly, if you didn't make these threads, I wouldn't care who you defederate. But because the thread exists, I have to come in and I have to have an opinion. That's a personal issue and I recognize that, but I would hazard a guess that I'm not the only one. People who have never interacted with Blahaj nor the instance getting defederated show up in these threads sometimes. These threads invite drama, and for me personally, whenever they come up they make this space feel significantly less safe and make me want to leave Lemmy as a whole because it feels like it's just nonstop defederation drama for days at a time, but it's pinned at the top of my feed.
Maybe these threads actually provide utility, and I should just take these threads as a sign I should take a break from the Internet for a bit. But to me, they just seem like they're all downsides.
It's to give a timeframe for negotiation between server admins to resolve the issue, for users on both servers a chance to weigh in whether they do or do not support either admin's position (whether admins listen or not), and notice for users who may suddenly find communities they frequented lacking in new posts.
Negotiation across opposing positions is very tough but sometimes a necessary process to promote healthier online discourse. Regardless of the defederation is immediate or not, or if there was no decision to reverse it, there would be drama about it. I think that unless there's a different agreed upon process between server admins to handle issues they may feel is cause for defederation, this is about as smooth and mutually understanding way to go about it as you can.