Very glad to hear it. ;)
I certainly understand the frustration, and will pass the feedback along again. Here's one point worth noting, though, by way of explaining why this is not as straightforward as one might imagine:
When issues like this occur, they typically occur for a very small percentage of all advertisers. In light of this an 'alert' message in all accounts (including those of the majority who are not experiencing the issue) might prove to be unnecessarily alarming - and not taken kindly. Further, it's not a matter of just a few moment's work to pinpoint only those accounts affected and send an appropriate message - meaning that the alert could actually arrive after the issue had been resolved.
All that said, I can only agree that knowing what's afoot is a very good thing - and I'll make sure your feedback is heard. I've already started to do so, in fact.
Again, I apologize for the inconvenience to those who had issues with their account today.