Interesting.
It's been obvious for the last few months that something was wrong and leading to a massive increase in the time required to process the update list, but it's nice to finally get a proper explanation about what's going on.
Wouldn't just releasing an SP4 solve this "exponential algorithm" problem?
Sure. But there won't be a SP4. Service packs are a very, very big deal; MS won't roll one out just to address a singular issue like this.
Plus they need to take into consideration businesses that have purchased private support contracts, since they'll need a functional update mechanism for years to come.