The Ulduar fights are under tuned in general, or at least a few of them are. They are making adjustments as necessary of course, but that has nothing to do with the extent of tanking changes they are making. Some changes I can understand - OK, Will was a bit OP, lets put an inner cooldown on it. But why even COMPLETELY change talents like Blade Barrier - which does nothing more than make up for a Frost presence nerf? These are
drastic changes to tanking. Some people have some good suggestions in
this thread, but I just hope they rebalance it a bit, because it'll be quite a shock for those who dont pay attention to patch notes/testing comments. (which really are a large part of the community, sadly)