You're moving the goalposts. You've made abundantly clear that your question is what changes need to occur. The thread you linked asks when server lag is going to be fixed. Those are two different questions.
The question of "when" has been answered. As far as I can tell, the question of "what" has not been asked until today.
Moreover, I suspect it's kind of an unfair question. First, SE can't -- and shouldn't -- reveal its confidential business information.
Second, we're talking about several different issues: server lag, party search feature, linkshell management, limits on the number of items that can be traded, etc. While the cause of all those problems may be related to the servers, I seriously doubt that they're all caused by the same server issue. So they'd all need their own explanations.
Third, answering your question would require SE to figure out how they're going to fix those issues. But they aren't to that stage yet. I'd much rather they focus on fixing problems than diverting manpower to resolve your curiosity about things they're going to fix in the future.
You asked them to treat the server related issues like they've treated the other issues with the game. Well, that's what they're doing. They provide information about the battle related issues when they've arrived at a plan and developed a way to address those issues. We didn't hear much about crafting changes -- other than the fact that they'd be addressed -- until very recently because they're now figuring out what they're going to do.
We should expect the same thing when it comes to server related issues. Let them address the issues they're working on, and then they can give us more details when they begin working on them.