From what I've seen, communication about the recent outage has been extremely poor, and even now that things are starting to return to normal, this is continuing.

I went to Twitter https://twitter.com/CPDN_BOINC but there was very little information there. Apparently, we were supposed to know to go to http://boinc.berkeley.edu/dev/forum_thread.php?id=10279 for information.

Has the project learned anything from this outage?

Will we be getting any information about what the project has learned?

Has the project at least learned that it needs to do much much better at keeping people up to date about what is happening?

It wasn't really "the project" that had a failure, but some hardware in one of the many departments of the University of Oxford.

And, as the entire collection of virtual servers that comprise cpdn were shut down, how do you expect the public to be told at any project related site?
The BOINC/dev site is currently the best place. After all, everyone gets their BOINC software from there.

As for learning from it, it's the same thing that everyone learns from failures like this:
Machines fail now and then.