I think the support team has no good answers so they aren't getting back to people. I know it took over a month between the time I first called in and it started working. And even then it was another week before I got my last call from my tech person saying the engineers asked him to call and check on my situation.
I think I was among the first to call in about this because I did get a lot of telephone calls and a direct number to call my senior tech. I didn't call to ask about updates, they don't actually know anything they just do what the engineers ask them. Customers who have had this problem come up more recently seem to have the experience you're having.
Plus, my tech rarely responded to email - he didn't even read the email that I sent when it started working again.
They have very nice tech support people but if it's beyond wiping and restoring the iPad, they seem to flounder around. I think that's why they are not getting back to you or other people - they don't know what else to tell you but wait.
Apple Just Works ... right?
This has been my first experience with iOS and AppleCare. I was very very surprised. I kept hearing how Apple tech support is the best and while they are nice, they're not the best.